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Posted to notifications@shardingsphere.apache.org by zh...@apache.org on 2020/07/25 12:52:52 UTC

[shardingsphere] branch master updated: update css styles by cayman (#6437)

This is an automated email from the ASF dual-hosted git repository.

zhangliang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/shardingsphere.git


The following commit(s) were added to refs/heads/master by this push:
     new fe0d244  update css styles by cayman (#6437)
fe0d244 is described below

commit fe0d2440e7a6694502ae061b9d34e286418a9ff8
Author: CaymanHK <55...@users.noreply.github.com>
AuthorDate: Sat Jul 25 20:52:33 2020 +0800

    update css styles by cayman (#6437)
---
 docs/blog/static/css/theme-black.css               | 429 ++++++++++++++---
 .../themes/hugo-theme-learn/static/css/nucleus.css | 524 ++++++++++++++-------
 docs/community/static/css/theme-black.css          | 429 ++++++++++++++---
 .../themes/hugo-theme-learn/static/css/nucleus.css | 524 ++++++++++++++-------
 docs/document/static/css/theme-black.css           | 433 ++++++++++++++---
 .../themes/hugo-theme-learn/static/css/nucleus.css |   3 +-
 6 files changed, 1828 insertions(+), 514 deletions(-)

diff --git a/docs/blog/static/css/theme-black.css b/docs/blog/static/css/theme-black.css
index 748ab1d..0505a22 100644
--- a/docs/blog/static/css/theme-black.css
+++ b/docs/blog/static/css/theme-black.css
@@ -1,5 +1,7 @@
 @charset "UTF-8";
-#top-github-link, #body #breadcrumbs {
+
+#top-github-link,
+#body #breadcrumbs {
     position: relative;
     top: 50%;
     -webkit-transform: translateY(-50%);
@@ -8,13 +10,18 @@
     -ms-transform: translateY(-50%);
     transform: translateY(-50%);
 }
-.button, .button-secondary {
+
+.button,
+.button-secondary {
     display: inline-block;
     padding: 7px 12px;
 }
-.button:active, .button-secondary:active {
+
+.button:active,
+.button-secondary:active {
     margin: 2px 0 -2px 0;
 }
+
 @font-face {
     font-family: 'Novacento Sans Wide';
     src: url("../fonts/Novecentosanswide-UltraLight-webfont.eot");
@@ -22,82 +29,158 @@
     font-style: normal;
     font-weight: 200;
 }
+
 @font-face {
     font-family: 'Work Sans';
     font-style: normal;
     font-weight: 300;
     src: url("../fonts/Work_Sans_300.eot?#iefix") format("embedded-opentype"), url("../fonts/Work_Sans_300.woff") format("woff"), url("../fonts/Work_Sans_300.woff2") format("woff2"), url("../fonts/Work_Sans_300.svg#WorkSans") format("svg"), url("../fonts/Work_Sans_300.ttf") format("truetype");
 }
+
 @font-face {
     font-family: 'Work Sans';
     font-style: normal;
     font-weight: 500;
     src: url("../fonts/Work_Sans_500.eot?#iefix") format("embedded-opentype"), url("../fonts/Work_Sans_500.woff") format("woff"), url("../fonts/Work_Sans_500.woff2") format("woff2"), url("../fonts/Work_Sans_500.svg#WorkSans") format("svg"), url("../fonts/Work_Sans_500.ttf") format("truetype");
 }
+
 body {
     background: #fff;
     color: #777;
 }
+
 body #chapter h1 {
     font-size: 3.5rem;
 }
+
 @media only all and (min-width: 48em) and (max-width: 59.938em) {
     body #chapter h1 {
         font-size: 3rem;
     }
 }
+
 @media only all and (max-width: 47.938em) {
     body #chapter h1 {
         font-size: 2rem;
     }
 }
+
 a {
     /* color: #00bdf3; */
-    color: rgba(197, 43, 0, 0.77);
+    color: rgba(15, 88, 163, 1);
 }
+
 a:hover {
-    color: #0082a7;
+    /* color: #0082a7; */
+    color: #0a4f90;
 }
+
 pre {
     position: relative;
     color: #ffffff;
 }
+
 .bg {
     background: #fff;
     border: 1px solid #eaeaea;
 }
-b, strong, label, th {
+
+b,
+strong,
+label,
+th {
     font-weight: 600;
 }
-.default-animation, #header #logo-svg, #header #logo-svg path, #sidebar, #sidebar ul, #body, #body .padding, #body .nav {
+
+.default-animation,
+#header #logo-svg,
+#header #logo-svg path,
+#sidebar,
+#sidebar ul,
+#body,
+#body .padding,
+#body .nav {
     -webkit-transition: all 0.5s ease;
     -moz-transition: all 0.5s ease;
     transition: all 0.5s ease;
 }
+
 #grav-logo {
     max-width: 60%;
 }
+
 #grav-logo path {
     fill: #fff !important;
 }
+
 #sidebar {
     font-weight: 300 !important;
 }
+
 fieldset {
     border: 1px solid #ddd;
 }
-textarea, input[type="email"], input[type="number"], input[type="password"], input[type="search"], input[type="tel"], input[type="text"], input[type="url"], input[type="color"], input[type="date"], input[type="datetime"], input[type="datetime-local"], input[type="month"], input[type="time"], input[type="week"], select[multiple=multiple] {
+
+textarea,
+input[type="email"],
+input[type="number"],
+input[type="password"],
+input[type="search"],
+input[type="tel"],
+input[type="text"],
+input[type="url"],
+input[type="color"],
+input[type="date"],
+input[type="datetime"],
+input[type="datetime-local"],
+input[type="month"],
+input[type="time"],
+input[type="week"],
+select[multiple=multiple] {
     background-color: white;
     border: 1px solid #ddd;
     box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.06);
 }
-textarea:hover, input[type="email"]:hover, input[type="number"]:hover, input[type="password"]:hover, input[type="search"]:hover, input[type="tel"]:hover, input[type="text"]:hover, input[type="url"]:hover, input[type="color"]:hover, input[type="date"]:hover, input[type="datetime"]:hover, input[type="datetime-local"]:hover, input[type="month"]:hover, input[type="time"]:hover, input[type="week"]:hover, select[multiple=multiple]:hover {
+
+textarea:hover,
+input[type="email"]:hover,
+input[type="number"]:hover,
+input[type="password"]:hover,
+input[type="search"]:hover,
+input[type="tel"]:hover,
+input[type="text"]:hover,
+input[type="url"]:hover,
+input[type="color"]:hover,
+input[type="date"]:hover,
+input[type="datetime"]:hover,
+input[type="datetime-local"]:hover,
+input[type="month"]:hover,
+input[type="time"]:hover,
+input[type="week"]:hover,
+select[multiple=multiple]:hover {
     border-color: #c4c4c4;
 }
-textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[type="password"]:focus, input[type="search"]:focus, input[type="tel"]:focus, input[type="text"]:focus, input[type="url"]:focus, input[type="color"]:focus, input[type="date"]:focus, input[type="datetime"]:focus, input[type="datetime-local"]:focus, input[type="month"]:focus, input[type="time"]:focus, input[type="week"]:focus, select[multiple=multiple]:focus {
+
+textarea:focus,
+input[type="email"]:focus,
+input[type="number"]:focus,
+input[type="password"]:focus,
+input[type="search"]:focus,
+input[type="tel"]:focus,
+input[type="text"]:focus,
+input[type="url"]:focus,
+input[type="color"]:focus,
+input[type="date"]:focus,
+input[type="datetime"]:focus,
+input[type="datetime-local"]:focus,
+input[type="month"]:focus,
+input[type="time"]:focus,
+input[type="week"]:focus,
+select[multiple=multiple]:focus {
     border-color: #00bdf3;
-    box-shadow: inset 0 1px 3px rgba(0,0,0,.06),0 0 5px rgba(0,169,218,.7)
+    box-shadow: inset 0 1px 3px rgba(0, 0, 0, .06), 0 0 5px rgba(0, 169, 218, .7)
 }
+
 #header-wrapper {
     background: black;
     border-color: black;
@@ -105,16 +188,20 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     border-bottom: 4px solid black;
     padding: 1rem;
 }
+
 #header a {
     display: inline-block;
 }
+
 #header #logo-svg {
     width: 8rem;
     height: 2rem;
 }
+
 #header #logo-svg path {
     fill: #fff;
 }
+
 .searchbox {
     margin-top: 1rem;
     position: relative;
@@ -122,12 +209,14 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     background: #322A38;
     border-radius: 4px;
 }
+
 .searchbox label {
     color: rgba(255, 255, 255, 0.8);
     position: absolute;
     left: 10px;
     top: 3px;
 }
+
 .searchbox span {
     color: rgba(255, 255, 255, 0.6);
     position: absolute;
@@ -135,9 +224,11 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     top: 3px;
     cursor: pointer;
 }
+
 .searchbox span:hover {
     color: rgba(255, 255, 255, 0.9);
 }
+
 .searchbox input {
     display: inline-block;
     color: #fff;
@@ -149,28 +240,36 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     margin: 0;
     font-weight: 300;
 }
+
 .searchbox input::-webkit-input-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 .searchbox input::-moz-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 .searchbox input:-moz-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 .searchbox input:-ms-input-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 #sidebar-toggle-span {
     display: none;
 }
+
 @media only all and (max-width: 47.938em) {
     #sidebar-toggle-span {
         display: inline;
     }
 }
+
 #sidebar {
-    background-color: #322A38;
+    /* background-color: #322A38; */
+    background-color: rgba(2, 30, 62, 0.95);
     position: fixed;
     top: 0;
     width: 300px;
@@ -179,26 +278,33 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     font-weight: 400;
     font-size: 15px;
 }
+
 #sidebar a {
     color: #ccc;
 }
+
 #sidebar a:hover {
     color: #e6e6e6;
 }
+
 #sidebar a.subtitle {
     color: rgba(204, 204, 204, 0.6);
 }
+
 #sidebar hr {
     border-bottom: 1px solid #2a232f;
 }
+
 #sidebar a.padding {
     padding: 0 1rem;
 }
+
 #sidebar h5 {
     margin: 2rem 0 0;
     position: relative;
     line-height: 2;
 }
+
 #sidebar h5 a {
     display: block;
     margin-left: 0;
@@ -206,6 +312,7 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     padding-left: 1rem;
     padding-right: 1rem;
 }
+
 #sidebar h5 i {
     color: rgba(204, 204, 204, 0.6);
     position: absolute;
@@ -213,73 +320,96 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     top: 0.7rem;
     font-size: 80%;
 }
+
 #sidebar h5.parent a {
     background: #201b24;
     color: #d9d9d9 !important;
 }
+
 #sidebar h5.active a {
     background: #fff;
     color: #777 !important;
 }
+
 #sidebar h5.active i {
     color: #777 !important;
 }
-#sidebar h5 + ul.topics {
+
+#sidebar h5+ul.topics {
     display: none;
     margin-top: 0;
 }
-#sidebar h5.parent + ul.topics, #sidebar h5.active + ul.topics {
+
+#sidebar h5.parent+ul.topics,
+#sidebar h5.active+ul.topics {
     display: block;
 }
+
 #sidebar ul {
     list-style: none;
     padding: 0;
     margin: 0;
 }
+
 #sidebar ul.searched a {
     color: #999999;
 }
+
 #sidebar ul.searched .search-match a {
     color: #e6e6e6;
 }
+
 #sidebar ul.searched .search-match a:hover {
     color: white;
 }
+
 #sidebar ul.topics {
     margin: 0 1rem;
 }
+
 #sidebar ul.topics.searched ul {
     display: block;
 }
+
 #sidebar ul.topics ul {
     display: none;
     padding-bottom: 1rem;
 }
+
 #sidebar ul.topics ul ul {
     padding-bottom: 0;
 }
-#sidebar ul.topics li.parent ul, #sidebar ul.topics > li.active ul {
+
+#sidebar ul.topics li.parent ul,
+#sidebar ul.topics>li.active ul {
     display: block;
 }
-#sidebar ul.topics > li > a {
+
+#sidebar ul.topics>li>a {
     line-height: 2rem;
     font-size: 1.1rem;
 }
-#sidebar ul.topics > li > a b {
+
+#sidebar ul.topics>li>a b {
     opacity: 0.5;
     font-weight: normal;
 }
-#sidebar ul.topics > li > a .fa {
+
+#sidebar ul.topics>li>a .fa {
     margin-top: 9px;
 }
-#sidebar ul.topics > li.parent, #sidebar ul.topics > li.active {
-    background: #251f29;
+
+#sidebar ul.topics>li.parent,
+#sidebar ul.topics>li.active {
+    /* background: #251f29; */
+    background: rgba(88, 100, 120, 0.41);
     margin-left: -1rem;
     margin-right: -1rem;
     padding-left: 1rem;
     padding-right: 1rem;
 }
-#sidebar ul li.active > a {
+
+#sidebar ul li.active>a {
     background: #fff;
     color: #777 !important;
     margin-left: -1rem;
@@ -287,81 +417,104 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     padding-left: 1rem;
     padding-right: 1rem;
 }
+
 #sidebar ul li {
     padding: 0;
 }
-#sidebar ul li.visited + span {
+
+#sidebar ul li.visited+span {
     margin-right: 16px;
 }
+
 #sidebar ul li a {
     display: block;
     padding: 2px 0;
 }
+
 #sidebar ul li a span {
     text-overflow: ellipsis;
     overflow: hidden;
     white-space: nowrap;
     display: block;
 }
-#sidebar ul li > a {
+
+#sidebar ul li>a {
     padding: 4px 0;
 }
-#sidebar ul li.visited > a .read-icon {
+
+#sidebar ul li.visited>a .read-icon {
     color: #9c6fb6;
     display: inline;
 }
+
 #sidebar ul li li {
     padding-left: 1rem;
     text-indent: 0.2rem;
 }
+
 #main {
     background: #f7f7f7;
     margin: 0 0 1.563rem 0;
 }
+
 #body {
     position: relative;
     margin-left: 300px;
     min-height: 100%;
 }
-#body img, #body .video-container {
+
+#body img,
+#body .video-container {
     margin: auto;
     text-align: left;
     display: inherit;
-    max-width: 100%; /* set img size */
+    max-width: 100%;
+    /* set img size */
 }
-#body img.border, #body .video-container.border {
+
+#body img.border,
+#body .video-container.border {
     border: 2px solid #e6e6e6 !important;
     padding: 2px;
 }
-#body img.shadow, #body .video-container.shadow {
+
+#body img.shadow,
+#body .video-container.shadow {
     box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
 }
+
 #body img.inline {
     display: inline !important;
     margin: 0 !important;
     vertical-align: bottom;
 }
+
 #body .bordered {
     border: 1px solid #ccc;
 }
+
 #body .padding {
     padding: 3rem 6rem;
 }
+
 @media only all and (max-width: 59.938em) {
     #body .padding {
         position: static;
         padding: 15px 3rem;
     }
 }
+
 @media only all and (max-width: 47.938em) {
     #body .padding {
         padding: 5px 1rem;
     }
 }
-#body h1 + hr {
+
+#body h1+hr {
     margin-top: -1.7rem;
     margin-bottom: 3rem;
 }
+
 @media only all and (max-width: 59.938em) {
     #body #navigation {
         position: static;
@@ -370,6 +523,7 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
         display: table;
     }
 }
+
 #body .nav {
     position: fixed;
     top: 0;
@@ -381,11 +535,13 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     display: table;
     text-align: center;
 }
-#body .nav > i {
+
+#body .nav>i {
     display: table-cell;
     vertical-align: middle;
     text-align: center;
 }
+
 @media only all and (max-width: 59.938em) {
     #body .nav {
         display: table-cell;
@@ -397,22 +553,28 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
         line-height: 100px;
         padding-top: 0;
     }
-    #body .nav > i {
+
+    #body .nav>i {
         display: inline-block;
     }
 }
+
 #body .nav:hover {
     background: #F6F6F6;
 }
+
 #body .nav.nav-pref {
     left: 0;
 }
+
 #body .nav.nav-next {
     right: 0;
 }
+
 #body-inner {
     margin-bottom: 5rem;
 }
+
 #chapter {
     display: flex;
     align-items: center;
@@ -420,30 +582,37 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     height: 100%;
     padding: 2rem 0;
 }
+
 #chapter #body-inner {
     padding-bottom: 3rem;
     max-width: 80%;
 }
+
 #chapter h3 {
     font-family: "Work Sans", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     font-weight: 300;
     text-align: center;
 }
+
 #chapter h1 {
     font-size: 5rem;
     border-bottom: 4px solid #F0F2F4;
 }
+
 #chapter p {
     text-align: left;
 }
+
 #footer {
     padding: 3rem 1rem;
     color: #b3b3b3;
     font-size: 13px;
 }
+
 #footer p {
     margin: 0;
 }
+
 body {
     font-family: "Work Sans", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     font-weight: 300;
@@ -451,13 +620,19 @@ body {
     /* font-size: 18px !important; */
     font-size: 16px !important;
 }
-h2, h3, h4, h5, h6 {
+
+h2,
+h3,
+h4,
+h5,
+h6 {
     font-family: "Work Sans", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     text-rendering: optimizeLegibility;
     color: #5e5e5e;
     font-weight: 400;
     letter-spacing: -1px;
 }
+
 h1 {
     font-family: "Novacento Sans Wide", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     text-align: center;
@@ -465,23 +640,28 @@ h1 {
     color: #222;
     font-weight: 200;
 }
+
 blockquote {
     border-left: 10px solid #F0F2F4;
 }
+
 blockquote p {
     font-size: 1.1rem;
     color: #999;
 }
+
 blockquote cite {
     display: block;
     text-align: right;
     color: #666;
     font-size: 1.2rem;
 }
+
 div.notices {
     margin: 2rem 0;
     position: relative;
 }
+
 div.notices p {
     padding: 15px;
     display: block;
@@ -490,6 +670,7 @@ div.notices p {
     margin-bottom: 0rem;
     color: #666;
 }
+
 div.notices p:first-child:before {
     position: absolute;
     top: 2px;
@@ -498,37 +679,46 @@ div.notices p:first-child:before {
     content: '';
     left: 10px;
 }
+
 div.notices p:first-child:after {
     position: absolute;
     top: 2px;
     color: #fff;
     left: 2rem;
 }
+
 div.notices.info p {
     border-top: 30px solid #F0B37E;
     background: #FFF2DB;
 }
+
 div.notices.info p:first-child:after {
     content: 'Info';
 }
+
 div.notices.warning p {
     border-top: 30px solid rgba(217, 83, 79, 0.8);
     background: #FAE2E2;
 }
+
 div.notices.warning p:first-child:after {
     content: 'Warning';
 }
+
 div.notices.note p {
     border-top: 30px solid #6AB0DE;
     background: #E7F2FA;
 }
+
 div.notices.note p:first-child:after {
     content: 'Note';
 }
+
 div.notices.tip p {
     border-top: 30px solid rgba(92, 184, 92, 0.8);
     background: #E6F9E6;
 }
+
 div.notices.tip p:first-child:after {
     content: 'Tip';
 }
@@ -600,42 +790,52 @@ section.attachments.grey .attachments-files {
     font-size: small;
     margin-top: 0px;
     padding-top: 0px;
-    margin-bottom:  0px;
+    margin-bottom: 0px;
     padding-bottom: 0px;
 }
+
 .children-li p {
     font-size: small;
     font-style: italic;
 
 }
-.children-h2 p, .children-h3 p {
+
+.children-h2 p,
+.children-h3 p {
     font-size: small;
     margin-top: 0px;
     padding-top: 0px;
-    margin-bottom:  0px;
+    margin-bottom: 0px;
     padding-bottom: 0px;
 }
-.children h3,.children h2 {
+
+.children h3,
+.children h2 {
     margin-bottom: 0px;
     margin-top: 5px;
 }
 
-code, kbd, pre, samp {
+code,
+kbd,
+pre,
+samp {
     font-family: "Consolas", menlo, monospace;
     font-size: 92%;
 }
+
 code {
     border-radius: 2px;
     white-space: nowrap;
     color: #5e5e5e;
     /* background: #FFF7DD; */
-    background: rgba(244, 51, 12, 0.42);
+    background: rgba(40, 130, 209, 0.23);
     border-radius: 0.5rem;
     /* border: 1px solid #fbf0cb; */
     /* padding: 0px 2px; */
     padding: 0px 5px;
 }
-code + .copy-to-clipboard {
+
+code+.copy-to-clipboard {
     margin-left: -1px;
     border-left: 0 !important;
     font-size: inherit !important;
@@ -643,6 +843,7 @@ code + .copy-to-clipboard {
     height: 21px;
     top: 0;
 }
+
 pre {
     padding: 1rem;
     margin: 2rem 0;
@@ -651,6 +852,7 @@ pre {
     border-radius: 2px;
     line-height: 1.15;
 }
+
 pre code {
     color: whitesmoke;
     background: inherit;
@@ -660,9 +862,11 @@ pre code {
     margin: 0;
     font-size: 15px;
 }
+
 hr {
     border-bottom: 4px solid #F0F2F4;
 }
+
 .page-title {
     margin-top: -25px;
     padding: 25px;
@@ -671,106 +875,132 @@ hr {
     background: #9c6fb6;
     color: #fff;
 }
+
 #body a.anchor-link {
     color: #ccc;
 }
+
 #body a.anchor-link:hover {
     color: #9c6fb6;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges {
     background: #1d1f21;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges .tabs-nav li {
     font-size: 0.9rem;
     text-transform: uppercase;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges .tabs-nav li a {
     background: #35393c;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges .tabs-nav li.current a {
     background: #4d5257;
 }
+
 #body-inner pre {
     white-space: pre-wrap;
 }
+
 .tabs-wrapper pre {
     margin: 1rem 0;
     border: 0;
     padding: 0;
     background: inherit;
 }
+
 table {
     border: 1px solid #eaeaea;
     table-layout: auto;
 }
+
 th {
     background: #f7f7f7;
     padding: 0.5rem;
 }
+
 td {
     padding: 0.5rem;
     border: 1px solid #eaeaea;
 }
+
 .button {
     background: #9c6fb6;
     color: #fff;
     box-shadow: 0 3px 0 #00a5d4;
 }
+
 .button:hover {
     background: #00a5d4;
     box-shadow: 0 3px 0 #008db6;
     color: #fff;
 }
+
 .button:active {
     box-shadow: 0 1px 0 #008db6;
 }
+
 .button-secondary {
     background: #F8B450;
     color: #fff;
     box-shadow: 0 3px 0 #f7a733;
 }
+
 .button-secondary:hover {
     background: #f7a733;
     box-shadow: 0 3px 0 #f69b15;
     color: #fff;
 }
+
 .button-secondary:active {
     box-shadow: 0 1px 0 #f69b15;
 }
+
 .bullets {
     margin: 1.7rem 0;
     margin-left: -0.85rem;
     margin-right: -0.85rem;
     overflow: auto;
 }
+
 .bullet {
     float: left;
     padding: 0 0.85rem;
 }
+
 .two-column-bullet {
     width: 50%;
 }
+
 @media only all and (max-width: 47.938em) {
     .two-column-bullet {
         width: 100%;
     }
 }
+
 .three-column-bullet {
     width: 33.33333%;
 }
+
 @media only all and (max-width: 47.938em) {
     .three-column-bullet {
         width: 100%;
     }
 }
+
 .four-column-bullet {
     width: 25%;
 }
+
 @media only all and (max-width: 47.938em) {
     .four-column-bullet {
         width: 100%;
     }
 }
+
 .bullet-icon {
     float: left;
     background: #9c6fb6;
@@ -782,21 +1012,27 @@ td {
     font-size: 1.75rem;
     text-align: center;
 }
+
 .bullet-icon-1 {
     background: #9c6fb6;
 }
+
 .bullet-icon-2 {
     background: #00f3d8;
 }
+
 .bullet-icon-3 {
     background: #e6f300;
 }
+
 .bullet-content {
     margin-left: 4.55rem;
 }
+
 .tooltipped {
     position: relative;
 }
+
 .tooltipped:after {
     position: absolute;
     z-index: 1000000;
@@ -817,6 +1053,7 @@ td {
     border-radius: 3px;
     -webkit-font-smoothing: subpixel-antialiased;
 }
+
 .tooltipped:before {
     position: absolute;
     z-index: 1000001;
@@ -828,59 +1065,85 @@ td {
     content: "";
     border: 5px solid transparent;
 }
-.tooltipped:hover:before, .tooltipped:hover:after, .tooltipped:active:before, .tooltipped:active:after, .tooltipped:focus:before, .tooltipped:focus:after {
+
+.tooltipped:hover:before,
+.tooltipped:hover:after,
+.tooltipped:active:before,
+.tooltipped:active:after,
+.tooltipped:focus:before,
+.tooltipped:focus:after {
     display: inline-block;
     text-decoration: none;
 }
-.tooltipped-s:after, .tooltipped-se:after, .tooltipped-sw:after {
+
+.tooltipped-s:after,
+.tooltipped-se:after,
+.tooltipped-sw:after {
     top: 100%;
     right: 50%;
     margin-top: 5px;
 }
-.tooltipped-s:before, .tooltipped-se:before, .tooltipped-sw:before {
+
+.tooltipped-s:before,
+.tooltipped-se:before,
+.tooltipped-sw:before {
     top: auto;
     right: 50%;
     bottom: -5px;
     margin-right: -5px;
     border-bottom-color: rgba(0, 0, 0, 0.8);
 }
+
 .tooltipped-se:after {
     right: auto;
     left: 50%;
     margin-left: -15px;
 }
+
 .tooltipped-sw:after {
     margin-right: -15px;
 }
-.tooltipped-n:after, .tooltipped-ne:after, .tooltipped-nw:after {
+
+.tooltipped-n:after,
+.tooltipped-ne:after,
+.tooltipped-nw:after {
     right: 50%;
     bottom: 100%;
     margin-bottom: 5px;
 }
-.tooltipped-n:before, .tooltipped-ne:before, .tooltipped-nw:before {
+
+.tooltipped-n:before,
+.tooltipped-ne:before,
+.tooltipped-nw:before {
     top: -5px;
     right: 50%;
     bottom: auto;
     margin-right: -5px;
     border-top-color: rgba(0, 0, 0, 0.8);
 }
+
 .tooltipped-ne:after {
     right: auto;
     left: 50%;
     margin-left: -15px;
 }
+
 .tooltipped-nw:after {
     margin-right: -15px;
 }
-.tooltipped-s:after, .tooltipped-n:after {
+
+.tooltipped-s:after,
+.tooltipped-n:after {
     transform: translateX(50%);
 }
+
 .tooltipped-w:after {
     right: 100%;
     bottom: 50%;
     margin-right: 5px;
     transform: translateY(50%);
 }
+
 .tooltipped-w:before {
     top: 50%;
     bottom: 50%;
@@ -888,12 +1151,14 @@ td {
     margin-top: -5px;
     border-left-color: rgba(0, 0, 0, 0.8);
 }
+
 .tooltipped-e:after {
     bottom: 50%;
     left: 100%;
     margin-left: 5px;
     transform: translateY(50%);
 }
+
 .tooltipped-e:before {
     top: 50%;
     right: -5px;
@@ -901,46 +1166,61 @@ td {
     margin-top: -5px;
     border-right-color: rgba(0, 0, 0, 0.8);
 }
+
 .highlightable {
     padding: 1rem 0 1rem;
     overflow: auto;
     position: relative;
 }
-.hljs::selection, .hljs span::selection {
+
+.hljs::selection,
+.hljs span::selection {
     background: #b7b7b7;
 }
+
 .lightbox-active #body {
     overflow: visible;
 }
+
 .lightbox-active #body .padding {
     overflow: visible;
 }
+
 #github-contrib i {
     vertical-align: middle;
 }
+
 .featherlight img {
     margin: 0 !important;
 }
+
 .lifecycle #body-inner ul {
     list-style: none;
     margin: 0;
     padding: 2rem 0 0;
     position: relative;
 }
+
 .lifecycle #body-inner ol {
     margin: 1rem 0 1rem 0;
     padding: 2rem;
     position: relative;
 }
+
 .lifecycle #body-inner ol li {
     margin-left: 1rem;
 }
-.lifecycle #body-inner ol strong, .lifecycle #body-inner ol label, .lifecycle #body-inner ol th {
+
+.lifecycle #body-inner ol strong,
+.lifecycle #body-inner ol label,
+.lifecycle #body-inner ol th {
     text-decoration: underline;
 }
+
 .lifecycle #body-inner ol ol {
     margin-left: -1rem;
 }
+
 .lifecycle #body-inner h3[class*='level'] {
     font-size: 20px;
     position: absolute;
@@ -951,57 +1231,69 @@ td {
     color: #fff;
     background: #1ABC9C;
 }
+
 .lifecycle #body-inner ol h3 {
     margin-top: 1rem !important;
     right: 2rem !important;
 }
-.lifecycle #body-inner .level-1 + ol {
+
+.lifecycle #body-inner .level-1+ol {
     background: #f6fefc;
     border: 4px solid #1ABC9C;
     color: #16A085;
 }
-.lifecycle #body-inner .level-1 + ol h3 {
+
+.lifecycle #body-inner .level-1+ol h3 {
     background: #2ECC71;
 }
-.lifecycle #body-inner .level-2 + ol {
+
+.lifecycle #body-inner .level-2+ol {
     background: #f7fdf9;
     border: 4px solid #2ECC71;
     color: #27AE60;
 }
-.lifecycle #body-inner .level-2 + ol h3 {
+
+.lifecycle #body-inner .level-2+ol h3 {
     background: #3498DB;
 }
-.lifecycle #body-inner .level-3 + ol {
+
+.lifecycle #body-inner .level-3+ol {
     background: #f3f9fd;
     border: 4px solid #3498DB;
     color: #2980B9;
 }
-.lifecycle #body-inner .level-3 + ol h3 {
+
+.lifecycle #body-inner .level-3+ol h3 {
     background: #34495E;
 }
-.lifecycle #body-inner .level-4 + ol {
+
+.lifecycle #body-inner .level-4+ol {
     background: #e4eaf0;
     border: 4px solid #34495E;
     color: #2C3E50;
 }
-.lifecycle #body-inner .level-4 + ol h3 {
+
+.lifecycle #body-inner .level-4+ol h3 {
     background: #34495E;
 }
+
 #top-bar {
     /* background: #F6F6F6; */
-    background: rgba(255, 237, 226, 0.9);
+    background: rgba(195, 211, 229, 0.82);
     /* border-radius: 2px; */
     border-radius: 4px;
     padding: 0 1rem;
     height: 0;
     min-height: 3rem;
 }
+
 #top-github-link {
     position: relative;
     z-index: 1;
     float: right;
     display: block;
 }
+
 #body #breadcrumbs {
     height: auto;
     margin-bottom: 0;
@@ -1014,36 +1306,45 @@ td {
     display: inline-block;
     float: left;
 }
+
 #body #breadcrumbs span {
     padding: 0 0.1rem;
 }
+
 @media only all and (max-width: 59.938em) {
     #sidebar {
         width: 230px;
     }
+
     #body {
         margin-left: 230px;
     }
 }
+
 @media only all and (max-width: 47.938em) {
     #sidebar {
         width: 230px;
         left: -230px;
     }
+
     #body {
         margin-left: 0;
         width: 100%;
     }
+
     .sidebar-hidden {
         overflow: hidden;
     }
+
     .sidebar-hidden #sidebar {
         left: 0;
     }
+
     .sidebar-hidden #body {
         margin-left: 230px;
         overflow: hidden;
     }
+
     .sidebar-hidden #overlay {
         position: absolute;
         left: 0;
@@ -1055,6 +1356,7 @@ td {
         cursor: pointer;
     }
 }
+
 .copy-to-clipboard {
     background-image: none;
     background-position: 50% 50%;
@@ -1073,9 +1375,11 @@ td {
     border-radius: 0 2px 2px 0;
     margin-bottom: 1px;
 }
+
 .copy-to-clipboard:hover {
     background-color: #E8E2CD;
 }
+
 pre .copy-to-clipboard {
     position: absolute;
     right: 4px;
@@ -1084,17 +1388,19 @@ pre .copy-to-clipboard {
     color: #ccc;
     border-radius: 2px;
 }
+
 pre .copy-to-clipboard:hover {
     background-color: #656c72;
     color: #fff;
 }
+
 .parent-element {
     -webkit-transform-style: preserve-3d;
     -moz-transform-style: preserve-3d;
     transform-style: preserve-3d;
 }
 
-#sidebar ul.topics > li > a .read-icon {
+#sidebar ul.topics>li>a .read-icon {
     margin-top: 9px;
 }
 
@@ -1117,15 +1423,16 @@ pre .copy-to-clipboard:hover {
     margin: 4px 0 0 0;
     text-align: right;
 }
-#sidebar ul li.visited > a .read-icon {
+
+#sidebar ul li.visited>a .read-icon {
     color: #00bdf3;
     display: inline;
 }
 
 #sidebar #shortcuts h3 {
     font-family: "Novacento Sans Wide", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
-    color: white ;
-    margin-top:1rem;
+    color: white;
+    margin-top: 1rem;
     padding-left: 1rem;
 }
 
@@ -1133,4 +1440,4 @@ pre .copy-to-clipboard:hover {
     text-align: left;
 }
 
-/*# sourceMappingURL=theme.css.map */
+/*# sourceMappingURL=theme.css.map */
\ No newline at end of file
diff --git a/docs/blog/themes/hugo-theme-learn/static/css/nucleus.css b/docs/blog/themes/hugo-theme-learn/static/css/nucleus.css
index 3a50dcd..de56e49 100644
--- a/docs/blog/themes/hugo-theme-learn/static/css/nucleus.css
+++ b/docs/blog/themes/hugo-theme-learn/static/css/nucleus.css
@@ -1,25 +1,40 @@
-*, *::before, *::after {
+*,
+*::before,
+*::after {
   -webkit-box-sizing: border-box;
   -moz-box-sizing: border-box;
-  box-sizing: border-box; }
+  box-sizing: border-box;
+}
 
 @-webkit-viewport {
-  width: device-width; }
+  width: device-width;
+}
+
 @-moz-viewport {
-  width: device-width; }
+  width: device-width;
+}
+
 @-ms-viewport {
-  width: device-width; }
+  width: device-width;
+}
+
 @-o-viewport {
-  width: device-width; }
+  width: device-width;
+}
+
 @viewport {
-  width: device-width; }
+  width: device-width;
+}
+
 html {
   font-size: 100%;
   -ms-text-size-adjust: 100%;
-  -webkit-text-size-adjust: 100%; }
+  -webkit-text-size-adjust: 100%;
+}
 
 body {
-  margin: 0; }
+  margin: 0;
+}
 
 article,
 aside,
@@ -33,165 +48,218 @@ main,
 nav,
 section,
 summary {
-  display: block; }
+  display: block;
+}
 
 audio,
 canvas,
 progress,
 video {
   display: inline-block;
-  vertical-align: baseline; }
+  vertical-align: baseline;
+}
 
 audio:not([controls]) {
   display: none;
-  height: 0; }
+  height: 0;
+}
 
 [hidden],
 template {
-  display: none; }
+  display: none;
+}
 
 a {
   background: transparent;
-  text-decoration: none; }
+  text-decoration: none;
+}
 
 a:active,
 a:hover {
-  outline: 0; }
+  outline: 0;
+}
 
 abbr[title] {
-  border-bottom: 1px dotted; }
+  border-bottom: 1px dotted;
+}
 
 b,
 strong {
-  font-weight: bold; }
+  font-weight: bold;
+}
 
 dfn {
-  font-style: italic; }
+  font-style: italic;
+}
 
 mark {
   background: #FFFF27;
-  color: #333; }
+  color: #333;
+}
 
 sub,
 sup {
   font-size: 0.8rem;
   line-height: 0;
   position: relative;
-  vertical-align: baseline; }
+  vertical-align: baseline;
+}
 
 sup {
-  top: -0.5em; }
+  top: -0.5em;
+}
 
 sub {
-  bottom: -0.25em; }
+  bottom: -0.25em;
+}
 
 img {
   border: 0;
-  max-width: 100%; }
+  max-width: 100%;
+}
 
 svg:not(:root) {
-  overflow: hidden; }
+  overflow: hidden;
+}
 
 figure {
-  margin: 1em 40px; }
+  margin: 1em 40px;
+}
 
 hr {
-  height: 0; }
+  height: 0;
+}
 
 pre {
-  overflow: auto; }
+  overflow: auto;
+}
 
 button,
 input,
 optgroup,
 select,
 textarea {
-  color: inherit;
+  /* color: inherit; */
+  color: rgba(200, 200, 200, 1);
   font: inherit;
-  margin: 0; }
+  margin: 0;
+}
 
 button {
-  overflow: visible; }
+  overflow: visible;
+}
 
 button,
 select {
-  text-transform: none; }
+  text-transform: none;
+}
 
 button,
 html input[type="button"],
 input[type="reset"],
 input[type="submit"] {
   -webkit-appearance: button;
-  cursor: pointer; }
+  cursor: pointer;
+}
 
 button[disabled],
 html input[disabled] {
-  cursor: default; }
+  cursor: default;
+}
 
 button::-moz-focus-inner,
 input::-moz-focus-inner {
   border: 0;
-  padding: 0; }
+  padding: 0;
+}
 
 input {
-  line-height: normal; }
+  line-height: normal;
+}
 
 input[type="checkbox"],
 input[type="radio"] {
-  padding: 0; }
+  padding: 0;
+}
 
 input[type="number"]::-webkit-inner-spin-button,
 input[type="number"]::-webkit-outer-spin-button {
-  height: auto; }
+  height: auto;
+}
 
 input[type="search"] {
-  -webkit-appearance: textfield; }
+  -webkit-appearance: textfield;
+}
 
 input[type="search"]::-webkit-search-cancel-button,
 input[type="search"]::-webkit-search-decoration {
-  -webkit-appearance: none; }
+  -webkit-appearance: none;
+}
 
 legend {
   border: 0;
-  padding: 0; }
+  padding: 0;
+}
 
 textarea {
-  overflow: auto; }
+  overflow: auto;
+}
 
 optgroup {
-  font-weight: bold; }
+  font-weight: bold;
+}
 
 table {
   border-collapse: collapse;
   border-spacing: 0;
   table-layout: fixed;
-  width: 100%; }
+  width: 100%;
+}
 
-tr, td, th {
-  vertical-align: middle; }
+tr,
+td,
+th {
+  vertical-align: middle;
+}
 
-th, td {
-  padding: 0.425rem 0; }
+th,
+td {
+  padding: 0.425rem 0;
+}
 
 th {
-  text-align: left; }
+  text-align: left;
+}
 
 .container {
   width: 75em;
   margin: 0 auto;
-  padding: 0; }
-  @media only all and (min-width: 60em) and (max-width: 74.938em) {
-    .container {
-      width: 60em; } }
-  @media only all and (min-width: 48em) and (max-width: 59.938em) {
-    .container {
-      width: 48em; } }
-  @media only all and (min-width: 30.063em) and (max-width: 47.938em) {
-    .container {
-      width: 30em; } }
-  @media only all and (max-width: 30em) {
-    .container {
-      width: 100%; } }
+  padding: 0;
+}
+
+@media only all and (min-width: 60em) and (max-width: 74.938em) {
+  .container {
+    width: 60em;
+  }
+}
+
+@media only all and (min-width: 48em) and (max-width: 59.938em) {
+  .container {
+    width: 48em;
+  }
+}
+
+@media only all and (min-width: 30.063em) and (max-width: 47.938em) {
+  .container {
+    width: 30em;
+  }
+}
+
+@media only all and (max-width: 30em) {
+  .container {
+    width: 100%;
+  }
+}
 
 .grid {
   display: -webkit-box;
@@ -206,12 +274,16 @@ th {
   flex-flow: row;
   list-style: none;
   margin: 0;
-  padding: 0; }
-  @media only all and (max-width: 47.938em) {
-    .grid {
-      -webkit-flex-flow: row wrap;
-      -moz-flex-flow: row wrap;
-      flex-flow: row wrap; } }
+  padding: 0;
+}
+
+@media only all and (max-width: 47.938em) {
+  .grid {
+    -webkit-flex-flow: row wrap;
+    -moz-flex-flow: row wrap;
+    flex-flow: row wrap;
+  }
+}
 
 .block {
   -webkit-box-flex: 1;
@@ -222,20 +294,25 @@ th {
   -ms-flex: 1;
   flex: 1;
   min-width: 0;
-  min-height: 0; }
-  @media only all and (max-width: 47.938em) {
-    .block {
-      -webkit-box-flex: 0;
-      -moz-box-flex: 0;
-      box-flex: 0;
-      -webkit-flex: 0 100%;
-      -moz-flex: 0 100%;
-      -ms-flex: 0 100%;
-      flex: 0 100%; } }
+  min-height: 0;
+}
+
+@media only all and (max-width: 47.938em) {
+  .block {
+    -webkit-box-flex: 0;
+    -moz-box-flex: 0;
+    box-flex: 0;
+    -webkit-flex: 0 100%;
+    -moz-flex: 0 100%;
+    -ms-flex: 0 100%;
+    flex: 0 100%;
+  }
+}
 
 .content {
   margin: 0.625rem;
-  padding: 0.938rem; }
+  padding: 0.938rem;
+}
 
 @media only all and (max-width: 47.938em) {
   body [class*="size-"] {
@@ -245,7 +322,9 @@ th {
     -webkit-flex: 0 100%;
     -moz-flex: 0 100%;
     -ms-flex: 0 100%;
-    flex: 0 100%; } }
+    flex: 0 100%;
+  }
+}
 
 .size-1-2 {
   -webkit-box-flex: 0;
@@ -254,7 +333,8 @@ th {
   -webkit-flex: 0 50%;
   -moz-flex: 0 50%;
   -ms-flex: 0 50%;
-  flex: 0 50%; }
+  flex: 0 50%;
+}
 
 .size-1-3 {
   -webkit-box-flex: 0;
@@ -263,7 +343,8 @@ th {
   -webkit-flex: 0 33.33333%;
   -moz-flex: 0 33.33333%;
   -ms-flex: 0 33.33333%;
-  flex: 0 33.33333%; }
+  flex: 0 33.33333%;
+}
 
 .size-1-4 {
   -webkit-box-flex: 0;
@@ -272,7 +353,8 @@ th {
   -webkit-flex: 0 25%;
   -moz-flex: 0 25%;
   -ms-flex: 0 25%;
-  flex: 0 25%; }
+  flex: 0 25%;
+}
 
 .size-1-5 {
   -webkit-box-flex: 0;
@@ -281,7 +363,8 @@ th {
   -webkit-flex: 0 20%;
   -moz-flex: 0 20%;
   -ms-flex: 0 20%;
-  flex: 0 20%; }
+  flex: 0 20%;
+}
 
 .size-1-6 {
   -webkit-box-flex: 0;
@@ -290,7 +373,8 @@ th {
   -webkit-flex: 0 16.66667%;
   -moz-flex: 0 16.66667%;
   -ms-flex: 0 16.66667%;
-  flex: 0 16.66667%; }
+  flex: 0 16.66667%;
+}
 
 .size-1-7 {
   -webkit-box-flex: 0;
@@ -299,7 +383,8 @@ th {
   -webkit-flex: 0 14.28571%;
   -moz-flex: 0 14.28571%;
   -ms-flex: 0 14.28571%;
-  flex: 0 14.28571%; }
+  flex: 0 14.28571%;
+}
 
 .size-1-8 {
   -webkit-box-flex: 0;
@@ -308,7 +393,8 @@ th {
   -webkit-flex: 0 12.5%;
   -moz-flex: 0 12.5%;
   -ms-flex: 0 12.5%;
-  flex: 0 12.5%; }
+  flex: 0 12.5%;
+}
 
 .size-1-9 {
   -webkit-box-flex: 0;
@@ -317,7 +403,8 @@ th {
   -webkit-flex: 0 11.11111%;
   -moz-flex: 0 11.11111%;
   -ms-flex: 0 11.11111%;
-  flex: 0 11.11111%; }
+  flex: 0 11.11111%;
+}
 
 .size-1-10 {
   -webkit-box-flex: 0;
@@ -326,7 +413,8 @@ th {
   -webkit-flex: 0 10%;
   -moz-flex: 0 10%;
   -ms-flex: 0 10%;
-  flex: 0 10%; }
+  flex: 0 10%;
+}
 
 .size-1-11 {
   -webkit-box-flex: 0;
@@ -335,7 +423,8 @@ th {
   -webkit-flex: 0 9.09091%;
   -moz-flex: 0 9.09091%;
   -ms-flex: 0 9.09091%;
-  flex: 0 9.09091%; }
+  flex: 0 9.09091%;
+}
 
 .size-1-12 {
   -webkit-box-flex: 0;
@@ -344,7 +433,8 @@ th {
   -webkit-flex: 0 8.33333%;
   -moz-flex: 0 8.33333%;
   -ms-flex: 0 8.33333%;
-  flex: 0 8.33333%; }
+  flex: 0 8.33333%;
+}
 
 @media only all and (min-width: 48em) and (max-width: 59.938em) {
   .size-tablet-1-2 {
@@ -354,7 +444,8 @@ th {
     -webkit-flex: 0 50%;
     -moz-flex: 0 50%;
     -ms-flex: 0 50%;
-    flex: 0 50%; }
+    flex: 0 50%;
+  }
 
   .size-tablet-1-3 {
     -webkit-box-flex: 0;
@@ -363,7 +454,8 @@ th {
     -webkit-flex: 0 33.33333%;
     -moz-flex: 0 33.33333%;
     -ms-flex: 0 33.33333%;
-    flex: 0 33.33333%; }
+    flex: 0 33.33333%;
+  }
 
   .size-tablet-1-4 {
     -webkit-box-flex: 0;
@@ -372,7 +464,8 @@ th {
     -webkit-flex: 0 25%;
     -moz-flex: 0 25%;
     -ms-flex: 0 25%;
-    flex: 0 25%; }
+    flex: 0 25%;
+  }
 
   .size-tablet-1-5 {
     -webkit-box-flex: 0;
@@ -381,7 +474,8 @@ th {
     -webkit-flex: 0 20%;
     -moz-flex: 0 20%;
     -ms-flex: 0 20%;
-    flex: 0 20%; }
+    flex: 0 20%;
+  }
 
   .size-tablet-1-6 {
     -webkit-box-flex: 0;
@@ -390,7 +484,8 @@ th {
     -webkit-flex: 0 16.66667%;
     -moz-flex: 0 16.66667%;
     -ms-flex: 0 16.66667%;
-    flex: 0 16.66667%; }
+    flex: 0 16.66667%;
+  }
 
   .size-tablet-1-7 {
     -webkit-box-flex: 0;
@@ -399,7 +494,8 @@ th {
     -webkit-flex: 0 14.28571%;
     -moz-flex: 0 14.28571%;
     -ms-flex: 0 14.28571%;
-    flex: 0 14.28571%; }
+    flex: 0 14.28571%;
+  }
 
   .size-tablet-1-8 {
     -webkit-box-flex: 0;
@@ -408,7 +504,8 @@ th {
     -webkit-flex: 0 12.5%;
     -moz-flex: 0 12.5%;
     -ms-flex: 0 12.5%;
-    flex: 0 12.5%; }
+    flex: 0 12.5%;
+  }
 
   .size-tablet-1-9 {
     -webkit-box-flex: 0;
@@ -417,7 +514,8 @@ th {
     -webkit-flex: 0 11.11111%;
     -moz-flex: 0 11.11111%;
     -ms-flex: 0 11.11111%;
-    flex: 0 11.11111%; }
+    flex: 0 11.11111%;
+  }
 
   .size-tablet-1-10 {
     -webkit-box-flex: 0;
@@ -426,7 +524,8 @@ th {
     -webkit-flex: 0 10%;
     -moz-flex: 0 10%;
     -ms-flex: 0 10%;
-    flex: 0 10%; }
+    flex: 0 10%;
+  }
 
   .size-tablet-1-11 {
     -webkit-box-flex: 0;
@@ -435,7 +534,8 @@ th {
     -webkit-flex: 0 9.09091%;
     -moz-flex: 0 9.09091%;
     -ms-flex: 0 9.09091%;
-    flex: 0 9.09091%; }
+    flex: 0 9.09091%;
+  }
 
   .size-tablet-1-12 {
     -webkit-box-flex: 0;
@@ -444,7 +544,10 @@ th {
     -webkit-flex: 0 8.33333%;
     -moz-flex: 0 8.33333%;
     -ms-flex: 0 8.33333%;
-    flex: 0 8.33333%; } }
+    flex: 0 8.33333%;
+  }
+}
+
 @media only all and (max-width: 47.938em) {
   @supports not (flex-wrap: wrap) {
     .grid {
@@ -455,7 +558,8 @@ th {
       -webkit-flex-wrap: inherit;
       -moz-flex-wrap: inherit;
       -ms-flex-wrap: inherit;
-      flex-wrap: inherit; }
+      flex-wrap: inherit;
+    }
 
     .block {
       display: block;
@@ -465,147 +569,238 @@ th {
       -webkit-flex: inherit;
       -moz-flex: inherit;
       -ms-flex: inherit;
-      flex: inherit; } } }
+      flex: inherit;
+    }
+  }
+}
+
 .first-block {
   -webkit-box-ordinal-group: 0;
   -webkit-order: -1;
   -ms-flex-order: -1;
-  order: -1; }
+  order: -1;
+}
 
 .last-block {
   -webkit-box-ordinal-group: 2;
   -webkit-order: 1;
   -ms-flex-order: 1;
-  order: 1; }
+  order: 1;
+}
 
 .fixed-blocks {
   -webkit-flex-flow: row wrap;
   -moz-flex-flow: row wrap;
-  flex-flow: row wrap; }
+  flex-flow: row wrap;
+}
+
+.fixed-blocks .block {
+  -webkit-box-flex: inherit;
+  -moz-box-flex: inherit;
+  box-flex: inherit;
+  -webkit-flex: inherit;
+  -moz-flex: inherit;
+  -ms-flex: inherit;
+  flex: inherit;
+  width: 25%;
+}
+
+@media only all and (min-width: 60em) and (max-width: 74.938em) {
+  .fixed-blocks .block {
+    width: 33.33333%;
+  }
+}
+
+@media only all and (min-width: 48em) and (max-width: 59.938em) {
+  .fixed-blocks .block {
+    width: 50%;
+  }
+}
+
+@media only all and (max-width: 47.938em) {
   .fixed-blocks .block {
-    -webkit-box-flex: inherit;
-    -moz-box-flex: inherit;
-    box-flex: inherit;
-    -webkit-flex: inherit;
-    -moz-flex: inherit;
-    -ms-flex: inherit;
-    flex: inherit;
-    width: 25%; }
-    @media only all and (min-width: 60em) and (max-width: 74.938em) {
-      .fixed-blocks .block {
-        width: 33.33333%; } }
-    @media only all and (min-width: 48em) and (max-width: 59.938em) {
-      .fixed-blocks .block {
-        width: 50%; } }
-    @media only all and (max-width: 47.938em) {
-      .fixed-blocks .block {
-        width: 100%; } }
+    width: 100%;
+  }
+}
 
 body {
   font-size: 1.05rem;
-  line-height: 1.7; }
-
-h1, h2, h3, h4, h5, h6 {
+  line-height: 1.7;
+}
+
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
   margin: 0.85rem 0 1.7rem 0;
-  text-rendering: optimizeLegibility; }
+  text-rendering: optimizeLegibility;
+}
 
 h1 {
-  font-size: 3.25rem; }
+  font-size: 3.25rem;
+}
 
 h2 {
-  font-size: 2.55rem; }
+  font-size: 2.55rem;
+}
 
 h3 {
-  font-size: 2.15rem; }
+  font-size: 2.15rem;
+}
 
 h4 {
-  font-size: 1.8rem; }
+  font-size: 1.8rem;
+}
 
 h5 {
-  font-size: 1.4rem; }
+  font-size: 1.4rem;
+}
 
 h6 {
-  font-size: 0.9rem; }
+  font-size: 0.9rem;
+}
 
 p {
-  margin: 1.7rem 0; }
+  margin: 1.7rem 0;
+}
 
 /* ul,  */
 ol {
   margin-top: 1.7rem;
-  margin-bottom: 1.7rem; }
-  ul ul, ul ol, ol ul, ol ol {
-    margin-top: 0;
-    margin-bottom: 0; }
+  margin-bottom: 1.7rem;
+}
+
+ul ul,
+ul ol,
+ol ul,
+ol ol {
+  margin-top: 0;
+  margin-bottom: 0;
+}
 
 blockquote {
   margin: 1.7rem 0;
-  padding-left: 0.85rem; }
+  padding-left: 0.85rem;
+}
 
 cite {
   display: block;
-  font-size: 0.925rem; }
-  cite:before {
-    content: "\2014 \0020"; }
+  font-size: 0.925rem;
+}
+
+cite:before {
+  content: "\2014 \0020";
+}
 
 pre {
   margin: 1.7rem 0;
-  padding: 0.938rem; }
+  padding: 0.938rem;
+}
 
 code {
-  vertical-align: bottom; }
+  vertical-align: bottom;
+}
 
 small {
-  font-size: 0.925rem; }
+  font-size: 0.925rem;
+}
 
 hr {
   border-left: none;
   border-right: none;
   border-top: none;
-  margin: 1.7rem 0; }
+  margin: 1.7rem 0;
+}
 
 fieldset {
   border: 0;
   padding: 0.938rem;
-  margin: 0 0 1.7rem 0; }
+  margin: 0 0 1.7rem 0;
+}
 
 input,
 label,
 select {
-  display: block; }
+  display: block;
+}
 
 label {
-  margin-bottom: 0.425rem; }
-  label.required:after {
-    content: "*"; }
-  label abbr {
-    display: none; }
+  margin-bottom: 0.425rem;
+}
+
+label.required:after {
+  content: "*";
+}
 
-textarea, input[type="email"], input[type="number"], input[type="password"], input[type="search"], input[type="tel"], input[type="text"], input[type="url"], input[type="color"], input[type="date"], input[type="datetime"], input[type="datetime-local"], input[type="month"], input[type="time"], input[type="week"], select[multiple=multiple] {
+label abbr {
+  display: none;
+}
+
+textarea,
+input[type="email"],
+input[type="number"],
+input[type="password"],
+input[type="search"],
+input[type="tel"],
+input[type="text"],
+input[type="url"],
+input[type="color"],
+input[type="date"],
+input[type="datetime"],
+input[type="datetime-local"],
+input[type="month"],
+input[type="time"],
+input[type="week"],
+select[multiple=multiple] {
   -webkit-transition: border-color;
   -moz-transition: border-color;
   transition: border-color;
   border-radius: 0.1875rem;
   margin-bottom: 0.85rem;
   padding: 0.425rem 0.425rem;
-  width: 100%; }
-  textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[type="password"]:focus, input[type="search"]:focus, input[type="tel"]:focus, input[type="text"]:focus, input[type="url"]:focus, input[type="color"]:focus, input[type="date"]:focus, input[type="datetime"]:focus, input[type="datetime-local"]:focus, input[type="month"]:focus, input[type="time"]:focus, input[type="week"]:focus, select[multiple=multiple]:focus {
-    outline: none; }
+  width: 100%;
+}
+
+textarea:focus,
+input[type="email"]:focus,
+input[type="number"]:focus,
+input[type="password"]:focus,
+input[type="search"]:focus,
+input[type="tel"]:focus,
+input[type="text"]:focus,
+input[type="url"]:focus,
+input[type="color"]:focus,
+input[type="date"]:focus,
+input[type="datetime"]:focus,
+input[type="datetime-local"]:focus,
+input[type="month"]:focus,
+input[type="time"]:focus,
+input[type="week"]:focus,
+select[multiple=multiple]:focus {
+  outline: none;
+}
 
 textarea {
-  resize: vertical; }
+  resize: vertical;
+}
 
-input[type="checkbox"], input[type="radio"] {
+input[type="checkbox"],
+input[type="radio"] {
   display: inline;
-  margin-right: 0.425rem; }
+  margin-right: 0.425rem;
+}
 
 input[type="file"] {
-  width: 100%; }
+  width: 100%;
+}
 
 select {
   width: auto;
   max-width: 100%;
-  margin-bottom: 1.7rem; }
+  margin-bottom: 1.7rem;
+}
 
 button,
 input[type="submit"] {
@@ -613,6 +808,7 @@ input[type="submit"] {
   user-select: none;
   vertical-align: middle;
   white-space: nowrap;
-  border: inherit; }
+  border: inherit;
+}
 
-/*# sourceMappingURL=nucleus.css.map */
+/*# sourceMappingURL=nucleus.css.map */
\ No newline at end of file
diff --git a/docs/community/static/css/theme-black.css b/docs/community/static/css/theme-black.css
index 748ab1d..0505a22 100644
--- a/docs/community/static/css/theme-black.css
+++ b/docs/community/static/css/theme-black.css
@@ -1,5 +1,7 @@
 @charset "UTF-8";
-#top-github-link, #body #breadcrumbs {
+
+#top-github-link,
+#body #breadcrumbs {
     position: relative;
     top: 50%;
     -webkit-transform: translateY(-50%);
@@ -8,13 +10,18 @@
     -ms-transform: translateY(-50%);
     transform: translateY(-50%);
 }
-.button, .button-secondary {
+
+.button,
+.button-secondary {
     display: inline-block;
     padding: 7px 12px;
 }
-.button:active, .button-secondary:active {
+
+.button:active,
+.button-secondary:active {
     margin: 2px 0 -2px 0;
 }
+
 @font-face {
     font-family: 'Novacento Sans Wide';
     src: url("../fonts/Novecentosanswide-UltraLight-webfont.eot");
@@ -22,82 +29,158 @@
     font-style: normal;
     font-weight: 200;
 }
+
 @font-face {
     font-family: 'Work Sans';
     font-style: normal;
     font-weight: 300;
     src: url("../fonts/Work_Sans_300.eot?#iefix") format("embedded-opentype"), url("../fonts/Work_Sans_300.woff") format("woff"), url("../fonts/Work_Sans_300.woff2") format("woff2"), url("../fonts/Work_Sans_300.svg#WorkSans") format("svg"), url("../fonts/Work_Sans_300.ttf") format("truetype");
 }
+
 @font-face {
     font-family: 'Work Sans';
     font-style: normal;
     font-weight: 500;
     src: url("../fonts/Work_Sans_500.eot?#iefix") format("embedded-opentype"), url("../fonts/Work_Sans_500.woff") format("woff"), url("../fonts/Work_Sans_500.woff2") format("woff2"), url("../fonts/Work_Sans_500.svg#WorkSans") format("svg"), url("../fonts/Work_Sans_500.ttf") format("truetype");
 }
+
 body {
     background: #fff;
     color: #777;
 }
+
 body #chapter h1 {
     font-size: 3.5rem;
 }
+
 @media only all and (min-width: 48em) and (max-width: 59.938em) {
     body #chapter h1 {
         font-size: 3rem;
     }
 }
+
 @media only all and (max-width: 47.938em) {
     body #chapter h1 {
         font-size: 2rem;
     }
 }
+
 a {
     /* color: #00bdf3; */
-    color: rgba(197, 43, 0, 0.77);
+    color: rgba(15, 88, 163, 1);
 }
+
 a:hover {
-    color: #0082a7;
+    /* color: #0082a7; */
+    color: #0a4f90;
 }
+
 pre {
     position: relative;
     color: #ffffff;
 }
+
 .bg {
     background: #fff;
     border: 1px solid #eaeaea;
 }
-b, strong, label, th {
+
+b,
+strong,
+label,
+th {
     font-weight: 600;
 }
-.default-animation, #header #logo-svg, #header #logo-svg path, #sidebar, #sidebar ul, #body, #body .padding, #body .nav {
+
+.default-animation,
+#header #logo-svg,
+#header #logo-svg path,
+#sidebar,
+#sidebar ul,
+#body,
+#body .padding,
+#body .nav {
     -webkit-transition: all 0.5s ease;
     -moz-transition: all 0.5s ease;
     transition: all 0.5s ease;
 }
+
 #grav-logo {
     max-width: 60%;
 }
+
 #grav-logo path {
     fill: #fff !important;
 }
+
 #sidebar {
     font-weight: 300 !important;
 }
+
 fieldset {
     border: 1px solid #ddd;
 }
-textarea, input[type="email"], input[type="number"], input[type="password"], input[type="search"], input[type="tel"], input[type="text"], input[type="url"], input[type="color"], input[type="date"], input[type="datetime"], input[type="datetime-local"], input[type="month"], input[type="time"], input[type="week"], select[multiple=multiple] {
+
+textarea,
+input[type="email"],
+input[type="number"],
+input[type="password"],
+input[type="search"],
+input[type="tel"],
+input[type="text"],
+input[type="url"],
+input[type="color"],
+input[type="date"],
+input[type="datetime"],
+input[type="datetime-local"],
+input[type="month"],
+input[type="time"],
+input[type="week"],
+select[multiple=multiple] {
     background-color: white;
     border: 1px solid #ddd;
     box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.06);
 }
-textarea:hover, input[type="email"]:hover, input[type="number"]:hover, input[type="password"]:hover, input[type="search"]:hover, input[type="tel"]:hover, input[type="text"]:hover, input[type="url"]:hover, input[type="color"]:hover, input[type="date"]:hover, input[type="datetime"]:hover, input[type="datetime-local"]:hover, input[type="month"]:hover, input[type="time"]:hover, input[type="week"]:hover, select[multiple=multiple]:hover {
+
+textarea:hover,
+input[type="email"]:hover,
+input[type="number"]:hover,
+input[type="password"]:hover,
+input[type="search"]:hover,
+input[type="tel"]:hover,
+input[type="text"]:hover,
+input[type="url"]:hover,
+input[type="color"]:hover,
+input[type="date"]:hover,
+input[type="datetime"]:hover,
+input[type="datetime-local"]:hover,
+input[type="month"]:hover,
+input[type="time"]:hover,
+input[type="week"]:hover,
+select[multiple=multiple]:hover {
     border-color: #c4c4c4;
 }
-textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[type="password"]:focus, input[type="search"]:focus, input[type="tel"]:focus, input[type="text"]:focus, input[type="url"]:focus, input[type="color"]:focus, input[type="date"]:focus, input[type="datetime"]:focus, input[type="datetime-local"]:focus, input[type="month"]:focus, input[type="time"]:focus, input[type="week"]:focus, select[multiple=multiple]:focus {
+
+textarea:focus,
+input[type="email"]:focus,
+input[type="number"]:focus,
+input[type="password"]:focus,
+input[type="search"]:focus,
+input[type="tel"]:focus,
+input[type="text"]:focus,
+input[type="url"]:focus,
+input[type="color"]:focus,
+input[type="date"]:focus,
+input[type="datetime"]:focus,
+input[type="datetime-local"]:focus,
+input[type="month"]:focus,
+input[type="time"]:focus,
+input[type="week"]:focus,
+select[multiple=multiple]:focus {
     border-color: #00bdf3;
-    box-shadow: inset 0 1px 3px rgba(0,0,0,.06),0 0 5px rgba(0,169,218,.7)
+    box-shadow: inset 0 1px 3px rgba(0, 0, 0, .06), 0 0 5px rgba(0, 169, 218, .7)
 }
+
 #header-wrapper {
     background: black;
     border-color: black;
@@ -105,16 +188,20 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     border-bottom: 4px solid black;
     padding: 1rem;
 }
+
 #header a {
     display: inline-block;
 }
+
 #header #logo-svg {
     width: 8rem;
     height: 2rem;
 }
+
 #header #logo-svg path {
     fill: #fff;
 }
+
 .searchbox {
     margin-top: 1rem;
     position: relative;
@@ -122,12 +209,14 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     background: #322A38;
     border-radius: 4px;
 }
+
 .searchbox label {
     color: rgba(255, 255, 255, 0.8);
     position: absolute;
     left: 10px;
     top: 3px;
 }
+
 .searchbox span {
     color: rgba(255, 255, 255, 0.6);
     position: absolute;
@@ -135,9 +224,11 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     top: 3px;
     cursor: pointer;
 }
+
 .searchbox span:hover {
     color: rgba(255, 255, 255, 0.9);
 }
+
 .searchbox input {
     display: inline-block;
     color: #fff;
@@ -149,28 +240,36 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     margin: 0;
     font-weight: 300;
 }
+
 .searchbox input::-webkit-input-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 .searchbox input::-moz-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 .searchbox input:-moz-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 .searchbox input:-ms-input-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 #sidebar-toggle-span {
     display: none;
 }
+
 @media only all and (max-width: 47.938em) {
     #sidebar-toggle-span {
         display: inline;
     }
 }
+
 #sidebar {
-    background-color: #322A38;
+    /* background-color: #322A38; */
+    background-color: rgba(2, 30, 62, 0.95);
     position: fixed;
     top: 0;
     width: 300px;
@@ -179,26 +278,33 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     font-weight: 400;
     font-size: 15px;
 }
+
 #sidebar a {
     color: #ccc;
 }
+
 #sidebar a:hover {
     color: #e6e6e6;
 }
+
 #sidebar a.subtitle {
     color: rgba(204, 204, 204, 0.6);
 }
+
 #sidebar hr {
     border-bottom: 1px solid #2a232f;
 }
+
 #sidebar a.padding {
     padding: 0 1rem;
 }
+
 #sidebar h5 {
     margin: 2rem 0 0;
     position: relative;
     line-height: 2;
 }
+
 #sidebar h5 a {
     display: block;
     margin-left: 0;
@@ -206,6 +312,7 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     padding-left: 1rem;
     padding-right: 1rem;
 }
+
 #sidebar h5 i {
     color: rgba(204, 204, 204, 0.6);
     position: absolute;
@@ -213,73 +320,96 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     top: 0.7rem;
     font-size: 80%;
 }
+
 #sidebar h5.parent a {
     background: #201b24;
     color: #d9d9d9 !important;
 }
+
 #sidebar h5.active a {
     background: #fff;
     color: #777 !important;
 }
+
 #sidebar h5.active i {
     color: #777 !important;
 }
-#sidebar h5 + ul.topics {
+
+#sidebar h5+ul.topics {
     display: none;
     margin-top: 0;
 }
-#sidebar h5.parent + ul.topics, #sidebar h5.active + ul.topics {
+
+#sidebar h5.parent+ul.topics,
+#sidebar h5.active+ul.topics {
     display: block;
 }
+
 #sidebar ul {
     list-style: none;
     padding: 0;
     margin: 0;
 }
+
 #sidebar ul.searched a {
     color: #999999;
 }
+
 #sidebar ul.searched .search-match a {
     color: #e6e6e6;
 }
+
 #sidebar ul.searched .search-match a:hover {
     color: white;
 }
+
 #sidebar ul.topics {
     margin: 0 1rem;
 }
+
 #sidebar ul.topics.searched ul {
     display: block;
 }
+
 #sidebar ul.topics ul {
     display: none;
     padding-bottom: 1rem;
 }
+
 #sidebar ul.topics ul ul {
     padding-bottom: 0;
 }
-#sidebar ul.topics li.parent ul, #sidebar ul.topics > li.active ul {
+
+#sidebar ul.topics li.parent ul,
+#sidebar ul.topics>li.active ul {
     display: block;
 }
-#sidebar ul.topics > li > a {
+
+#sidebar ul.topics>li>a {
     line-height: 2rem;
     font-size: 1.1rem;
 }
-#sidebar ul.topics > li > a b {
+
+#sidebar ul.topics>li>a b {
     opacity: 0.5;
     font-weight: normal;
 }
-#sidebar ul.topics > li > a .fa {
+
+#sidebar ul.topics>li>a .fa {
     margin-top: 9px;
 }
-#sidebar ul.topics > li.parent, #sidebar ul.topics > li.active {
-    background: #251f29;
+
+#sidebar ul.topics>li.parent,
+#sidebar ul.topics>li.active {
+    /* background: #251f29; */
+    background: rgba(88, 100, 120, 0.41);
     margin-left: -1rem;
     margin-right: -1rem;
     padding-left: 1rem;
     padding-right: 1rem;
 }
-#sidebar ul li.active > a {
+
+#sidebar ul li.active>a {
     background: #fff;
     color: #777 !important;
     margin-left: -1rem;
@@ -287,81 +417,104 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     padding-left: 1rem;
     padding-right: 1rem;
 }
+
 #sidebar ul li {
     padding: 0;
 }
-#sidebar ul li.visited + span {
+
+#sidebar ul li.visited+span {
     margin-right: 16px;
 }
+
 #sidebar ul li a {
     display: block;
     padding: 2px 0;
 }
+
 #sidebar ul li a span {
     text-overflow: ellipsis;
     overflow: hidden;
     white-space: nowrap;
     display: block;
 }
-#sidebar ul li > a {
+
+#sidebar ul li>a {
     padding: 4px 0;
 }
-#sidebar ul li.visited > a .read-icon {
+
+#sidebar ul li.visited>a .read-icon {
     color: #9c6fb6;
     display: inline;
 }
+
 #sidebar ul li li {
     padding-left: 1rem;
     text-indent: 0.2rem;
 }
+
 #main {
     background: #f7f7f7;
     margin: 0 0 1.563rem 0;
 }
+
 #body {
     position: relative;
     margin-left: 300px;
     min-height: 100%;
 }
-#body img, #body .video-container {
+
+#body img,
+#body .video-container {
     margin: auto;
     text-align: left;
     display: inherit;
-    max-width: 100%; /* set img size */
+    max-width: 100%;
+    /* set img size */
 }
-#body img.border, #body .video-container.border {
+
+#body img.border,
+#body .video-container.border {
     border: 2px solid #e6e6e6 !important;
     padding: 2px;
 }
-#body img.shadow, #body .video-container.shadow {
+
+#body img.shadow,
+#body .video-container.shadow {
     box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
 }
+
 #body img.inline {
     display: inline !important;
     margin: 0 !important;
     vertical-align: bottom;
 }
+
 #body .bordered {
     border: 1px solid #ccc;
 }
+
 #body .padding {
     padding: 3rem 6rem;
 }
+
 @media only all and (max-width: 59.938em) {
     #body .padding {
         position: static;
         padding: 15px 3rem;
     }
 }
+
 @media only all and (max-width: 47.938em) {
     #body .padding {
         padding: 5px 1rem;
     }
 }
-#body h1 + hr {
+
+#body h1+hr {
     margin-top: -1.7rem;
     margin-bottom: 3rem;
 }
+
 @media only all and (max-width: 59.938em) {
     #body #navigation {
         position: static;
@@ -370,6 +523,7 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
         display: table;
     }
 }
+
 #body .nav {
     position: fixed;
     top: 0;
@@ -381,11 +535,13 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     display: table;
     text-align: center;
 }
-#body .nav > i {
+
+#body .nav>i {
     display: table-cell;
     vertical-align: middle;
     text-align: center;
 }
+
 @media only all and (max-width: 59.938em) {
     #body .nav {
         display: table-cell;
@@ -397,22 +553,28 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
         line-height: 100px;
         padding-top: 0;
     }
-    #body .nav > i {
+
+    #body .nav>i {
         display: inline-block;
     }
 }
+
 #body .nav:hover {
     background: #F6F6F6;
 }
+
 #body .nav.nav-pref {
     left: 0;
 }
+
 #body .nav.nav-next {
     right: 0;
 }
+
 #body-inner {
     margin-bottom: 5rem;
 }
+
 #chapter {
     display: flex;
     align-items: center;
@@ -420,30 +582,37 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     height: 100%;
     padding: 2rem 0;
 }
+
 #chapter #body-inner {
     padding-bottom: 3rem;
     max-width: 80%;
 }
+
 #chapter h3 {
     font-family: "Work Sans", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     font-weight: 300;
     text-align: center;
 }
+
 #chapter h1 {
     font-size: 5rem;
     border-bottom: 4px solid #F0F2F4;
 }
+
 #chapter p {
     text-align: left;
 }
+
 #footer {
     padding: 3rem 1rem;
     color: #b3b3b3;
     font-size: 13px;
 }
+
 #footer p {
     margin: 0;
 }
+
 body {
     font-family: "Work Sans", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     font-weight: 300;
@@ -451,13 +620,19 @@ body {
     /* font-size: 18px !important; */
     font-size: 16px !important;
 }
-h2, h3, h4, h5, h6 {
+
+h2,
+h3,
+h4,
+h5,
+h6 {
     font-family: "Work Sans", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     text-rendering: optimizeLegibility;
     color: #5e5e5e;
     font-weight: 400;
     letter-spacing: -1px;
 }
+
 h1 {
     font-family: "Novacento Sans Wide", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     text-align: center;
@@ -465,23 +640,28 @@ h1 {
     color: #222;
     font-weight: 200;
 }
+
 blockquote {
     border-left: 10px solid #F0F2F4;
 }
+
 blockquote p {
     font-size: 1.1rem;
     color: #999;
 }
+
 blockquote cite {
     display: block;
     text-align: right;
     color: #666;
     font-size: 1.2rem;
 }
+
 div.notices {
     margin: 2rem 0;
     position: relative;
 }
+
 div.notices p {
     padding: 15px;
     display: block;
@@ -490,6 +670,7 @@ div.notices p {
     margin-bottom: 0rem;
     color: #666;
 }
+
 div.notices p:first-child:before {
     position: absolute;
     top: 2px;
@@ -498,37 +679,46 @@ div.notices p:first-child:before {
     content: '';
     left: 10px;
 }
+
 div.notices p:first-child:after {
     position: absolute;
     top: 2px;
     color: #fff;
     left: 2rem;
 }
+
 div.notices.info p {
     border-top: 30px solid #F0B37E;
     background: #FFF2DB;
 }
+
 div.notices.info p:first-child:after {
     content: 'Info';
 }
+
 div.notices.warning p {
     border-top: 30px solid rgba(217, 83, 79, 0.8);
     background: #FAE2E2;
 }
+
 div.notices.warning p:first-child:after {
     content: 'Warning';
 }
+
 div.notices.note p {
     border-top: 30px solid #6AB0DE;
     background: #E7F2FA;
 }
+
 div.notices.note p:first-child:after {
     content: 'Note';
 }
+
 div.notices.tip p {
     border-top: 30px solid rgba(92, 184, 92, 0.8);
     background: #E6F9E6;
 }
+
 div.notices.tip p:first-child:after {
     content: 'Tip';
 }
@@ -600,42 +790,52 @@ section.attachments.grey .attachments-files {
     font-size: small;
     margin-top: 0px;
     padding-top: 0px;
-    margin-bottom:  0px;
+    margin-bottom: 0px;
     padding-bottom: 0px;
 }
+
 .children-li p {
     font-size: small;
     font-style: italic;
 
 }
-.children-h2 p, .children-h3 p {
+
+.children-h2 p,
+.children-h3 p {
     font-size: small;
     margin-top: 0px;
     padding-top: 0px;
-    margin-bottom:  0px;
+    margin-bottom: 0px;
     padding-bottom: 0px;
 }
-.children h3,.children h2 {
+
+.children h3,
+.children h2 {
     margin-bottom: 0px;
     margin-top: 5px;
 }
 
-code, kbd, pre, samp {
+code,
+kbd,
+pre,
+samp {
     font-family: "Consolas", menlo, monospace;
     font-size: 92%;
 }
+
 code {
     border-radius: 2px;
     white-space: nowrap;
     color: #5e5e5e;
     /* background: #FFF7DD; */
-    background: rgba(244, 51, 12, 0.42);
+    background: rgba(40, 130, 209, 0.23);
     border-radius: 0.5rem;
     /* border: 1px solid #fbf0cb; */
     /* padding: 0px 2px; */
     padding: 0px 5px;
 }
-code + .copy-to-clipboard {
+
+code+.copy-to-clipboard {
     margin-left: -1px;
     border-left: 0 !important;
     font-size: inherit !important;
@@ -643,6 +843,7 @@ code + .copy-to-clipboard {
     height: 21px;
     top: 0;
 }
+
 pre {
     padding: 1rem;
     margin: 2rem 0;
@@ -651,6 +852,7 @@ pre {
     border-radius: 2px;
     line-height: 1.15;
 }
+
 pre code {
     color: whitesmoke;
     background: inherit;
@@ -660,9 +862,11 @@ pre code {
     margin: 0;
     font-size: 15px;
 }
+
 hr {
     border-bottom: 4px solid #F0F2F4;
 }
+
 .page-title {
     margin-top: -25px;
     padding: 25px;
@@ -671,106 +875,132 @@ hr {
     background: #9c6fb6;
     color: #fff;
 }
+
 #body a.anchor-link {
     color: #ccc;
 }
+
 #body a.anchor-link:hover {
     color: #9c6fb6;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges {
     background: #1d1f21;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges .tabs-nav li {
     font-size: 0.9rem;
     text-transform: uppercase;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges .tabs-nav li a {
     background: #35393c;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges .tabs-nav li.current a {
     background: #4d5257;
 }
+
 #body-inner pre {
     white-space: pre-wrap;
 }
+
 .tabs-wrapper pre {
     margin: 1rem 0;
     border: 0;
     padding: 0;
     background: inherit;
 }
+
 table {
     border: 1px solid #eaeaea;
     table-layout: auto;
 }
+
 th {
     background: #f7f7f7;
     padding: 0.5rem;
 }
+
 td {
     padding: 0.5rem;
     border: 1px solid #eaeaea;
 }
+
 .button {
     background: #9c6fb6;
     color: #fff;
     box-shadow: 0 3px 0 #00a5d4;
 }
+
 .button:hover {
     background: #00a5d4;
     box-shadow: 0 3px 0 #008db6;
     color: #fff;
 }
+
 .button:active {
     box-shadow: 0 1px 0 #008db6;
 }
+
 .button-secondary {
     background: #F8B450;
     color: #fff;
     box-shadow: 0 3px 0 #f7a733;
 }
+
 .button-secondary:hover {
     background: #f7a733;
     box-shadow: 0 3px 0 #f69b15;
     color: #fff;
 }
+
 .button-secondary:active {
     box-shadow: 0 1px 0 #f69b15;
 }
+
 .bullets {
     margin: 1.7rem 0;
     margin-left: -0.85rem;
     margin-right: -0.85rem;
     overflow: auto;
 }
+
 .bullet {
     float: left;
     padding: 0 0.85rem;
 }
+
 .two-column-bullet {
     width: 50%;
 }
+
 @media only all and (max-width: 47.938em) {
     .two-column-bullet {
         width: 100%;
     }
 }
+
 .three-column-bullet {
     width: 33.33333%;
 }
+
 @media only all and (max-width: 47.938em) {
     .three-column-bullet {
         width: 100%;
     }
 }
+
 .four-column-bullet {
     width: 25%;
 }
+
 @media only all and (max-width: 47.938em) {
     .four-column-bullet {
         width: 100%;
     }
 }
+
 .bullet-icon {
     float: left;
     background: #9c6fb6;
@@ -782,21 +1012,27 @@ td {
     font-size: 1.75rem;
     text-align: center;
 }
+
 .bullet-icon-1 {
     background: #9c6fb6;
 }
+
 .bullet-icon-2 {
     background: #00f3d8;
 }
+
 .bullet-icon-3 {
     background: #e6f300;
 }
+
 .bullet-content {
     margin-left: 4.55rem;
 }
+
 .tooltipped {
     position: relative;
 }
+
 .tooltipped:after {
     position: absolute;
     z-index: 1000000;
@@ -817,6 +1053,7 @@ td {
     border-radius: 3px;
     -webkit-font-smoothing: subpixel-antialiased;
 }
+
 .tooltipped:before {
     position: absolute;
     z-index: 1000001;
@@ -828,59 +1065,85 @@ td {
     content: "";
     border: 5px solid transparent;
 }
-.tooltipped:hover:before, .tooltipped:hover:after, .tooltipped:active:before, .tooltipped:active:after, .tooltipped:focus:before, .tooltipped:focus:after {
+
+.tooltipped:hover:before,
+.tooltipped:hover:after,
+.tooltipped:active:before,
+.tooltipped:active:after,
+.tooltipped:focus:before,
+.tooltipped:focus:after {
     display: inline-block;
     text-decoration: none;
 }
-.tooltipped-s:after, .tooltipped-se:after, .tooltipped-sw:after {
+
+.tooltipped-s:after,
+.tooltipped-se:after,
+.tooltipped-sw:after {
     top: 100%;
     right: 50%;
     margin-top: 5px;
 }
-.tooltipped-s:before, .tooltipped-se:before, .tooltipped-sw:before {
+
+.tooltipped-s:before,
+.tooltipped-se:before,
+.tooltipped-sw:before {
     top: auto;
     right: 50%;
     bottom: -5px;
     margin-right: -5px;
     border-bottom-color: rgba(0, 0, 0, 0.8);
 }
+
 .tooltipped-se:after {
     right: auto;
     left: 50%;
     margin-left: -15px;
 }
+
 .tooltipped-sw:after {
     margin-right: -15px;
 }
-.tooltipped-n:after, .tooltipped-ne:after, .tooltipped-nw:after {
+
+.tooltipped-n:after,
+.tooltipped-ne:after,
+.tooltipped-nw:after {
     right: 50%;
     bottom: 100%;
     margin-bottom: 5px;
 }
-.tooltipped-n:before, .tooltipped-ne:before, .tooltipped-nw:before {
+
+.tooltipped-n:before,
+.tooltipped-ne:before,
+.tooltipped-nw:before {
     top: -5px;
     right: 50%;
     bottom: auto;
     margin-right: -5px;
     border-top-color: rgba(0, 0, 0, 0.8);
 }
+
 .tooltipped-ne:after {
     right: auto;
     left: 50%;
     margin-left: -15px;
 }
+
 .tooltipped-nw:after {
     margin-right: -15px;
 }
-.tooltipped-s:after, .tooltipped-n:after {
+
+.tooltipped-s:after,
+.tooltipped-n:after {
     transform: translateX(50%);
 }
+
 .tooltipped-w:after {
     right: 100%;
     bottom: 50%;
     margin-right: 5px;
     transform: translateY(50%);
 }
+
 .tooltipped-w:before {
     top: 50%;
     bottom: 50%;
@@ -888,12 +1151,14 @@ td {
     margin-top: -5px;
     border-left-color: rgba(0, 0, 0, 0.8);
 }
+
 .tooltipped-e:after {
     bottom: 50%;
     left: 100%;
     margin-left: 5px;
     transform: translateY(50%);
 }
+
 .tooltipped-e:before {
     top: 50%;
     right: -5px;
@@ -901,46 +1166,61 @@ td {
     margin-top: -5px;
     border-right-color: rgba(0, 0, 0, 0.8);
 }
+
 .highlightable {
     padding: 1rem 0 1rem;
     overflow: auto;
     position: relative;
 }
-.hljs::selection, .hljs span::selection {
+
+.hljs::selection,
+.hljs span::selection {
     background: #b7b7b7;
 }
+
 .lightbox-active #body {
     overflow: visible;
 }
+
 .lightbox-active #body .padding {
     overflow: visible;
 }
+
 #github-contrib i {
     vertical-align: middle;
 }
+
 .featherlight img {
     margin: 0 !important;
 }
+
 .lifecycle #body-inner ul {
     list-style: none;
     margin: 0;
     padding: 2rem 0 0;
     position: relative;
 }
+
 .lifecycle #body-inner ol {
     margin: 1rem 0 1rem 0;
     padding: 2rem;
     position: relative;
 }
+
 .lifecycle #body-inner ol li {
     margin-left: 1rem;
 }
-.lifecycle #body-inner ol strong, .lifecycle #body-inner ol label, .lifecycle #body-inner ol th {
+
+.lifecycle #body-inner ol strong,
+.lifecycle #body-inner ol label,
+.lifecycle #body-inner ol th {
     text-decoration: underline;
 }
+
 .lifecycle #body-inner ol ol {
     margin-left: -1rem;
 }
+
 .lifecycle #body-inner h3[class*='level'] {
     font-size: 20px;
     position: absolute;
@@ -951,57 +1231,69 @@ td {
     color: #fff;
     background: #1ABC9C;
 }
+
 .lifecycle #body-inner ol h3 {
     margin-top: 1rem !important;
     right: 2rem !important;
 }
-.lifecycle #body-inner .level-1 + ol {
+
+.lifecycle #body-inner .level-1+ol {
     background: #f6fefc;
     border: 4px solid #1ABC9C;
     color: #16A085;
 }
-.lifecycle #body-inner .level-1 + ol h3 {
+
+.lifecycle #body-inner .level-1+ol h3 {
     background: #2ECC71;
 }
-.lifecycle #body-inner .level-2 + ol {
+
+.lifecycle #body-inner .level-2+ol {
     background: #f7fdf9;
     border: 4px solid #2ECC71;
     color: #27AE60;
 }
-.lifecycle #body-inner .level-2 + ol h3 {
+
+.lifecycle #body-inner .level-2+ol h3 {
     background: #3498DB;
 }
-.lifecycle #body-inner .level-3 + ol {
+
+.lifecycle #body-inner .level-3+ol {
     background: #f3f9fd;
     border: 4px solid #3498DB;
     color: #2980B9;
 }
-.lifecycle #body-inner .level-3 + ol h3 {
+
+.lifecycle #body-inner .level-3+ol h3 {
     background: #34495E;
 }
-.lifecycle #body-inner .level-4 + ol {
+
+.lifecycle #body-inner .level-4+ol {
     background: #e4eaf0;
     border: 4px solid #34495E;
     color: #2C3E50;
 }
-.lifecycle #body-inner .level-4 + ol h3 {
+
+.lifecycle #body-inner .level-4+ol h3 {
     background: #34495E;
 }
+
 #top-bar {
     /* background: #F6F6F6; */
-    background: rgba(255, 237, 226, 0.9);
+    background: rgba(195, 211, 229, 0.82);
     /* border-radius: 2px; */
     border-radius: 4px;
     padding: 0 1rem;
     height: 0;
     min-height: 3rem;
 }
+
 #top-github-link {
     position: relative;
     z-index: 1;
     float: right;
     display: block;
 }
+
 #body #breadcrumbs {
     height: auto;
     margin-bottom: 0;
@@ -1014,36 +1306,45 @@ td {
     display: inline-block;
     float: left;
 }
+
 #body #breadcrumbs span {
     padding: 0 0.1rem;
 }
+
 @media only all and (max-width: 59.938em) {
     #sidebar {
         width: 230px;
     }
+
     #body {
         margin-left: 230px;
     }
 }
+
 @media only all and (max-width: 47.938em) {
     #sidebar {
         width: 230px;
         left: -230px;
     }
+
     #body {
         margin-left: 0;
         width: 100%;
     }
+
     .sidebar-hidden {
         overflow: hidden;
     }
+
     .sidebar-hidden #sidebar {
         left: 0;
     }
+
     .sidebar-hidden #body {
         margin-left: 230px;
         overflow: hidden;
     }
+
     .sidebar-hidden #overlay {
         position: absolute;
         left: 0;
@@ -1055,6 +1356,7 @@ td {
         cursor: pointer;
     }
 }
+
 .copy-to-clipboard {
     background-image: none;
     background-position: 50% 50%;
@@ -1073,9 +1375,11 @@ td {
     border-radius: 0 2px 2px 0;
     margin-bottom: 1px;
 }
+
 .copy-to-clipboard:hover {
     background-color: #E8E2CD;
 }
+
 pre .copy-to-clipboard {
     position: absolute;
     right: 4px;
@@ -1084,17 +1388,19 @@ pre .copy-to-clipboard {
     color: #ccc;
     border-radius: 2px;
 }
+
 pre .copy-to-clipboard:hover {
     background-color: #656c72;
     color: #fff;
 }
+
 .parent-element {
     -webkit-transform-style: preserve-3d;
     -moz-transform-style: preserve-3d;
     transform-style: preserve-3d;
 }
 
-#sidebar ul.topics > li > a .read-icon {
+#sidebar ul.topics>li>a .read-icon {
     margin-top: 9px;
 }
 
@@ -1117,15 +1423,16 @@ pre .copy-to-clipboard:hover {
     margin: 4px 0 0 0;
     text-align: right;
 }
-#sidebar ul li.visited > a .read-icon {
+
+#sidebar ul li.visited>a .read-icon {
     color: #00bdf3;
     display: inline;
 }
 
 #sidebar #shortcuts h3 {
     font-family: "Novacento Sans Wide", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
-    color: white ;
-    margin-top:1rem;
+    color: white;
+    margin-top: 1rem;
     padding-left: 1rem;
 }
 
@@ -1133,4 +1440,4 @@ pre .copy-to-clipboard:hover {
     text-align: left;
 }
 
-/*# sourceMappingURL=theme.css.map */
+/*# sourceMappingURL=theme.css.map */
\ No newline at end of file
diff --git a/docs/community/themes/hugo-theme-learn/static/css/nucleus.css b/docs/community/themes/hugo-theme-learn/static/css/nucleus.css
index 3a50dcd..de56e49 100644
--- a/docs/community/themes/hugo-theme-learn/static/css/nucleus.css
+++ b/docs/community/themes/hugo-theme-learn/static/css/nucleus.css
@@ -1,25 +1,40 @@
-*, *::before, *::after {
+*,
+*::before,
+*::after {
   -webkit-box-sizing: border-box;
   -moz-box-sizing: border-box;
-  box-sizing: border-box; }
+  box-sizing: border-box;
+}
 
 @-webkit-viewport {
-  width: device-width; }
+  width: device-width;
+}
+
 @-moz-viewport {
-  width: device-width; }
+  width: device-width;
+}
+
 @-ms-viewport {
-  width: device-width; }
+  width: device-width;
+}
+
 @-o-viewport {
-  width: device-width; }
+  width: device-width;
+}
+
 @viewport {
-  width: device-width; }
+  width: device-width;
+}
+
 html {
   font-size: 100%;
   -ms-text-size-adjust: 100%;
-  -webkit-text-size-adjust: 100%; }
+  -webkit-text-size-adjust: 100%;
+}
 
 body {
-  margin: 0; }
+  margin: 0;
+}
 
 article,
 aside,
@@ -33,165 +48,218 @@ main,
 nav,
 section,
 summary {
-  display: block; }
+  display: block;
+}
 
 audio,
 canvas,
 progress,
 video {
   display: inline-block;
-  vertical-align: baseline; }
+  vertical-align: baseline;
+}
 
 audio:not([controls]) {
   display: none;
-  height: 0; }
+  height: 0;
+}
 
 [hidden],
 template {
-  display: none; }
+  display: none;
+}
 
 a {
   background: transparent;
-  text-decoration: none; }
+  text-decoration: none;
+}
 
 a:active,
 a:hover {
-  outline: 0; }
+  outline: 0;
+}
 
 abbr[title] {
-  border-bottom: 1px dotted; }
+  border-bottom: 1px dotted;
+}
 
 b,
 strong {
-  font-weight: bold; }
+  font-weight: bold;
+}
 
 dfn {
-  font-style: italic; }
+  font-style: italic;
+}
 
 mark {
   background: #FFFF27;
-  color: #333; }
+  color: #333;
+}
 
 sub,
 sup {
   font-size: 0.8rem;
   line-height: 0;
   position: relative;
-  vertical-align: baseline; }
+  vertical-align: baseline;
+}
 
 sup {
-  top: -0.5em; }
+  top: -0.5em;
+}
 
 sub {
-  bottom: -0.25em; }
+  bottom: -0.25em;
+}
 
 img {
   border: 0;
-  max-width: 100%; }
+  max-width: 100%;
+}
 
 svg:not(:root) {
-  overflow: hidden; }
+  overflow: hidden;
+}
 
 figure {
-  margin: 1em 40px; }
+  margin: 1em 40px;
+}
 
 hr {
-  height: 0; }
+  height: 0;
+}
 
 pre {
-  overflow: auto; }
+  overflow: auto;
+}
 
 button,
 input,
 optgroup,
 select,
 textarea {
-  color: inherit;
+  /* color: inherit; */
+  color: rgba(200, 200, 200, 1);
   font: inherit;
-  margin: 0; }
+  margin: 0;
+}
 
 button {
-  overflow: visible; }
+  overflow: visible;
+}
 
 button,
 select {
-  text-transform: none; }
+  text-transform: none;
+}
 
 button,
 html input[type="button"],
 input[type="reset"],
 input[type="submit"] {
   -webkit-appearance: button;
-  cursor: pointer; }
+  cursor: pointer;
+}
 
 button[disabled],
 html input[disabled] {
-  cursor: default; }
+  cursor: default;
+}
 
 button::-moz-focus-inner,
 input::-moz-focus-inner {
   border: 0;
-  padding: 0; }
+  padding: 0;
+}
 
 input {
-  line-height: normal; }
+  line-height: normal;
+}
 
 input[type="checkbox"],
 input[type="radio"] {
-  padding: 0; }
+  padding: 0;
+}
 
 input[type="number"]::-webkit-inner-spin-button,
 input[type="number"]::-webkit-outer-spin-button {
-  height: auto; }
+  height: auto;
+}
 
 input[type="search"] {
-  -webkit-appearance: textfield; }
+  -webkit-appearance: textfield;
+}
 
 input[type="search"]::-webkit-search-cancel-button,
 input[type="search"]::-webkit-search-decoration {
-  -webkit-appearance: none; }
+  -webkit-appearance: none;
+}
 
 legend {
   border: 0;
-  padding: 0; }
+  padding: 0;
+}
 
 textarea {
-  overflow: auto; }
+  overflow: auto;
+}
 
 optgroup {
-  font-weight: bold; }
+  font-weight: bold;
+}
 
 table {
   border-collapse: collapse;
   border-spacing: 0;
   table-layout: fixed;
-  width: 100%; }
+  width: 100%;
+}
 
-tr, td, th {
-  vertical-align: middle; }
+tr,
+td,
+th {
+  vertical-align: middle;
+}
 
-th, td {
-  padding: 0.425rem 0; }
+th,
+td {
+  padding: 0.425rem 0;
+}
 
 th {
-  text-align: left; }
+  text-align: left;
+}
 
 .container {
   width: 75em;
   margin: 0 auto;
-  padding: 0; }
-  @media only all and (min-width: 60em) and (max-width: 74.938em) {
-    .container {
-      width: 60em; } }
-  @media only all and (min-width: 48em) and (max-width: 59.938em) {
-    .container {
-      width: 48em; } }
-  @media only all and (min-width: 30.063em) and (max-width: 47.938em) {
-    .container {
-      width: 30em; } }
-  @media only all and (max-width: 30em) {
-    .container {
-      width: 100%; } }
+  padding: 0;
+}
+
+@media only all and (min-width: 60em) and (max-width: 74.938em) {
+  .container {
+    width: 60em;
+  }
+}
+
+@media only all and (min-width: 48em) and (max-width: 59.938em) {
+  .container {
+    width: 48em;
+  }
+}
+
+@media only all and (min-width: 30.063em) and (max-width: 47.938em) {
+  .container {
+    width: 30em;
+  }
+}
+
+@media only all and (max-width: 30em) {
+  .container {
+    width: 100%;
+  }
+}
 
 .grid {
   display: -webkit-box;
@@ -206,12 +274,16 @@ th {
   flex-flow: row;
   list-style: none;
   margin: 0;
-  padding: 0; }
-  @media only all and (max-width: 47.938em) {
-    .grid {
-      -webkit-flex-flow: row wrap;
-      -moz-flex-flow: row wrap;
-      flex-flow: row wrap; } }
+  padding: 0;
+}
+
+@media only all and (max-width: 47.938em) {
+  .grid {
+    -webkit-flex-flow: row wrap;
+    -moz-flex-flow: row wrap;
+    flex-flow: row wrap;
+  }
+}
 
 .block {
   -webkit-box-flex: 1;
@@ -222,20 +294,25 @@ th {
   -ms-flex: 1;
   flex: 1;
   min-width: 0;
-  min-height: 0; }
-  @media only all and (max-width: 47.938em) {
-    .block {
-      -webkit-box-flex: 0;
-      -moz-box-flex: 0;
-      box-flex: 0;
-      -webkit-flex: 0 100%;
-      -moz-flex: 0 100%;
-      -ms-flex: 0 100%;
-      flex: 0 100%; } }
+  min-height: 0;
+}
+
+@media only all and (max-width: 47.938em) {
+  .block {
+    -webkit-box-flex: 0;
+    -moz-box-flex: 0;
+    box-flex: 0;
+    -webkit-flex: 0 100%;
+    -moz-flex: 0 100%;
+    -ms-flex: 0 100%;
+    flex: 0 100%;
+  }
+}
 
 .content {
   margin: 0.625rem;
-  padding: 0.938rem; }
+  padding: 0.938rem;
+}
 
 @media only all and (max-width: 47.938em) {
   body [class*="size-"] {
@@ -245,7 +322,9 @@ th {
     -webkit-flex: 0 100%;
     -moz-flex: 0 100%;
     -ms-flex: 0 100%;
-    flex: 0 100%; } }
+    flex: 0 100%;
+  }
+}
 
 .size-1-2 {
   -webkit-box-flex: 0;
@@ -254,7 +333,8 @@ th {
   -webkit-flex: 0 50%;
   -moz-flex: 0 50%;
   -ms-flex: 0 50%;
-  flex: 0 50%; }
+  flex: 0 50%;
+}
 
 .size-1-3 {
   -webkit-box-flex: 0;
@@ -263,7 +343,8 @@ th {
   -webkit-flex: 0 33.33333%;
   -moz-flex: 0 33.33333%;
   -ms-flex: 0 33.33333%;
-  flex: 0 33.33333%; }
+  flex: 0 33.33333%;
+}
 
 .size-1-4 {
   -webkit-box-flex: 0;
@@ -272,7 +353,8 @@ th {
   -webkit-flex: 0 25%;
   -moz-flex: 0 25%;
   -ms-flex: 0 25%;
-  flex: 0 25%; }
+  flex: 0 25%;
+}
 
 .size-1-5 {
   -webkit-box-flex: 0;
@@ -281,7 +363,8 @@ th {
   -webkit-flex: 0 20%;
   -moz-flex: 0 20%;
   -ms-flex: 0 20%;
-  flex: 0 20%; }
+  flex: 0 20%;
+}
 
 .size-1-6 {
   -webkit-box-flex: 0;
@@ -290,7 +373,8 @@ th {
   -webkit-flex: 0 16.66667%;
   -moz-flex: 0 16.66667%;
   -ms-flex: 0 16.66667%;
-  flex: 0 16.66667%; }
+  flex: 0 16.66667%;
+}
 
 .size-1-7 {
   -webkit-box-flex: 0;
@@ -299,7 +383,8 @@ th {
   -webkit-flex: 0 14.28571%;
   -moz-flex: 0 14.28571%;
   -ms-flex: 0 14.28571%;
-  flex: 0 14.28571%; }
+  flex: 0 14.28571%;
+}
 
 .size-1-8 {
   -webkit-box-flex: 0;
@@ -308,7 +393,8 @@ th {
   -webkit-flex: 0 12.5%;
   -moz-flex: 0 12.5%;
   -ms-flex: 0 12.5%;
-  flex: 0 12.5%; }
+  flex: 0 12.5%;
+}
 
 .size-1-9 {
   -webkit-box-flex: 0;
@@ -317,7 +403,8 @@ th {
   -webkit-flex: 0 11.11111%;
   -moz-flex: 0 11.11111%;
   -ms-flex: 0 11.11111%;
-  flex: 0 11.11111%; }
+  flex: 0 11.11111%;
+}
 
 .size-1-10 {
   -webkit-box-flex: 0;
@@ -326,7 +413,8 @@ th {
   -webkit-flex: 0 10%;
   -moz-flex: 0 10%;
   -ms-flex: 0 10%;
-  flex: 0 10%; }
+  flex: 0 10%;
+}
 
 .size-1-11 {
   -webkit-box-flex: 0;
@@ -335,7 +423,8 @@ th {
   -webkit-flex: 0 9.09091%;
   -moz-flex: 0 9.09091%;
   -ms-flex: 0 9.09091%;
-  flex: 0 9.09091%; }
+  flex: 0 9.09091%;
+}
 
 .size-1-12 {
   -webkit-box-flex: 0;
@@ -344,7 +433,8 @@ th {
   -webkit-flex: 0 8.33333%;
   -moz-flex: 0 8.33333%;
   -ms-flex: 0 8.33333%;
-  flex: 0 8.33333%; }
+  flex: 0 8.33333%;
+}
 
 @media only all and (min-width: 48em) and (max-width: 59.938em) {
   .size-tablet-1-2 {
@@ -354,7 +444,8 @@ th {
     -webkit-flex: 0 50%;
     -moz-flex: 0 50%;
     -ms-flex: 0 50%;
-    flex: 0 50%; }
+    flex: 0 50%;
+  }
 
   .size-tablet-1-3 {
     -webkit-box-flex: 0;
@@ -363,7 +454,8 @@ th {
     -webkit-flex: 0 33.33333%;
     -moz-flex: 0 33.33333%;
     -ms-flex: 0 33.33333%;
-    flex: 0 33.33333%; }
+    flex: 0 33.33333%;
+  }
 
   .size-tablet-1-4 {
     -webkit-box-flex: 0;
@@ -372,7 +464,8 @@ th {
     -webkit-flex: 0 25%;
     -moz-flex: 0 25%;
     -ms-flex: 0 25%;
-    flex: 0 25%; }
+    flex: 0 25%;
+  }
 
   .size-tablet-1-5 {
     -webkit-box-flex: 0;
@@ -381,7 +474,8 @@ th {
     -webkit-flex: 0 20%;
     -moz-flex: 0 20%;
     -ms-flex: 0 20%;
-    flex: 0 20%; }
+    flex: 0 20%;
+  }
 
   .size-tablet-1-6 {
     -webkit-box-flex: 0;
@@ -390,7 +484,8 @@ th {
     -webkit-flex: 0 16.66667%;
     -moz-flex: 0 16.66667%;
     -ms-flex: 0 16.66667%;
-    flex: 0 16.66667%; }
+    flex: 0 16.66667%;
+  }
 
   .size-tablet-1-7 {
     -webkit-box-flex: 0;
@@ -399,7 +494,8 @@ th {
     -webkit-flex: 0 14.28571%;
     -moz-flex: 0 14.28571%;
     -ms-flex: 0 14.28571%;
-    flex: 0 14.28571%; }
+    flex: 0 14.28571%;
+  }
 
   .size-tablet-1-8 {
     -webkit-box-flex: 0;
@@ -408,7 +504,8 @@ th {
     -webkit-flex: 0 12.5%;
     -moz-flex: 0 12.5%;
     -ms-flex: 0 12.5%;
-    flex: 0 12.5%; }
+    flex: 0 12.5%;
+  }
 
   .size-tablet-1-9 {
     -webkit-box-flex: 0;
@@ -417,7 +514,8 @@ th {
     -webkit-flex: 0 11.11111%;
     -moz-flex: 0 11.11111%;
     -ms-flex: 0 11.11111%;
-    flex: 0 11.11111%; }
+    flex: 0 11.11111%;
+  }
 
   .size-tablet-1-10 {
     -webkit-box-flex: 0;
@@ -426,7 +524,8 @@ th {
     -webkit-flex: 0 10%;
     -moz-flex: 0 10%;
     -ms-flex: 0 10%;
-    flex: 0 10%; }
+    flex: 0 10%;
+  }
 
   .size-tablet-1-11 {
     -webkit-box-flex: 0;
@@ -435,7 +534,8 @@ th {
     -webkit-flex: 0 9.09091%;
     -moz-flex: 0 9.09091%;
     -ms-flex: 0 9.09091%;
-    flex: 0 9.09091%; }
+    flex: 0 9.09091%;
+  }
 
   .size-tablet-1-12 {
     -webkit-box-flex: 0;
@@ -444,7 +544,10 @@ th {
     -webkit-flex: 0 8.33333%;
     -moz-flex: 0 8.33333%;
     -ms-flex: 0 8.33333%;
-    flex: 0 8.33333%; } }
+    flex: 0 8.33333%;
+  }
+}
+
 @media only all and (max-width: 47.938em) {
   @supports not (flex-wrap: wrap) {
     .grid {
@@ -455,7 +558,8 @@ th {
       -webkit-flex-wrap: inherit;
       -moz-flex-wrap: inherit;
       -ms-flex-wrap: inherit;
-      flex-wrap: inherit; }
+      flex-wrap: inherit;
+    }
 
     .block {
       display: block;
@@ -465,147 +569,238 @@ th {
       -webkit-flex: inherit;
       -moz-flex: inherit;
       -ms-flex: inherit;
-      flex: inherit; } } }
+      flex: inherit;
+    }
+  }
+}
+
 .first-block {
   -webkit-box-ordinal-group: 0;
   -webkit-order: -1;
   -ms-flex-order: -1;
-  order: -1; }
+  order: -1;
+}
 
 .last-block {
   -webkit-box-ordinal-group: 2;
   -webkit-order: 1;
   -ms-flex-order: 1;
-  order: 1; }
+  order: 1;
+}
 
 .fixed-blocks {
   -webkit-flex-flow: row wrap;
   -moz-flex-flow: row wrap;
-  flex-flow: row wrap; }
+  flex-flow: row wrap;
+}
+
+.fixed-blocks .block {
+  -webkit-box-flex: inherit;
+  -moz-box-flex: inherit;
+  box-flex: inherit;
+  -webkit-flex: inherit;
+  -moz-flex: inherit;
+  -ms-flex: inherit;
+  flex: inherit;
+  width: 25%;
+}
+
+@media only all and (min-width: 60em) and (max-width: 74.938em) {
+  .fixed-blocks .block {
+    width: 33.33333%;
+  }
+}
+
+@media only all and (min-width: 48em) and (max-width: 59.938em) {
+  .fixed-blocks .block {
+    width: 50%;
+  }
+}
+
+@media only all and (max-width: 47.938em) {
   .fixed-blocks .block {
-    -webkit-box-flex: inherit;
-    -moz-box-flex: inherit;
-    box-flex: inherit;
-    -webkit-flex: inherit;
-    -moz-flex: inherit;
-    -ms-flex: inherit;
-    flex: inherit;
-    width: 25%; }
-    @media only all and (min-width: 60em) and (max-width: 74.938em) {
-      .fixed-blocks .block {
-        width: 33.33333%; } }
-    @media only all and (min-width: 48em) and (max-width: 59.938em) {
-      .fixed-blocks .block {
-        width: 50%; } }
-    @media only all and (max-width: 47.938em) {
-      .fixed-blocks .block {
-        width: 100%; } }
+    width: 100%;
+  }
+}
 
 body {
   font-size: 1.05rem;
-  line-height: 1.7; }
-
-h1, h2, h3, h4, h5, h6 {
+  line-height: 1.7;
+}
+
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
   margin: 0.85rem 0 1.7rem 0;
-  text-rendering: optimizeLegibility; }
+  text-rendering: optimizeLegibility;
+}
 
 h1 {
-  font-size: 3.25rem; }
+  font-size: 3.25rem;
+}
 
 h2 {
-  font-size: 2.55rem; }
+  font-size: 2.55rem;
+}
 
 h3 {
-  font-size: 2.15rem; }
+  font-size: 2.15rem;
+}
 
 h4 {
-  font-size: 1.8rem; }
+  font-size: 1.8rem;
+}
 
 h5 {
-  font-size: 1.4rem; }
+  font-size: 1.4rem;
+}
 
 h6 {
-  font-size: 0.9rem; }
+  font-size: 0.9rem;
+}
 
 p {
-  margin: 1.7rem 0; }
+  margin: 1.7rem 0;
+}
 
 /* ul,  */
 ol {
   margin-top: 1.7rem;
-  margin-bottom: 1.7rem; }
-  ul ul, ul ol, ol ul, ol ol {
-    margin-top: 0;
-    margin-bottom: 0; }
+  margin-bottom: 1.7rem;
+}
+
+ul ul,
+ul ol,
+ol ul,
+ol ol {
+  margin-top: 0;
+  margin-bottom: 0;
+}
 
 blockquote {
   margin: 1.7rem 0;
-  padding-left: 0.85rem; }
+  padding-left: 0.85rem;
+}
 
 cite {
   display: block;
-  font-size: 0.925rem; }
-  cite:before {
-    content: "\2014 \0020"; }
+  font-size: 0.925rem;
+}
+
+cite:before {
+  content: "\2014 \0020";
+}
 
 pre {
   margin: 1.7rem 0;
-  padding: 0.938rem; }
+  padding: 0.938rem;
+}
 
 code {
-  vertical-align: bottom; }
+  vertical-align: bottom;
+}
 
 small {
-  font-size: 0.925rem; }
+  font-size: 0.925rem;
+}
 
 hr {
   border-left: none;
   border-right: none;
   border-top: none;
-  margin: 1.7rem 0; }
+  margin: 1.7rem 0;
+}
 
 fieldset {
   border: 0;
   padding: 0.938rem;
-  margin: 0 0 1.7rem 0; }
+  margin: 0 0 1.7rem 0;
+}
 
 input,
 label,
 select {
-  display: block; }
+  display: block;
+}
 
 label {
-  margin-bottom: 0.425rem; }
-  label.required:after {
-    content: "*"; }
-  label abbr {
-    display: none; }
+  margin-bottom: 0.425rem;
+}
+
+label.required:after {
+  content: "*";
+}
 
-textarea, input[type="email"], input[type="number"], input[type="password"], input[type="search"], input[type="tel"], input[type="text"], input[type="url"], input[type="color"], input[type="date"], input[type="datetime"], input[type="datetime-local"], input[type="month"], input[type="time"], input[type="week"], select[multiple=multiple] {
+label abbr {
+  display: none;
+}
+
+textarea,
+input[type="email"],
+input[type="number"],
+input[type="password"],
+input[type="search"],
+input[type="tel"],
+input[type="text"],
+input[type="url"],
+input[type="color"],
+input[type="date"],
+input[type="datetime"],
+input[type="datetime-local"],
+input[type="month"],
+input[type="time"],
+input[type="week"],
+select[multiple=multiple] {
   -webkit-transition: border-color;
   -moz-transition: border-color;
   transition: border-color;
   border-radius: 0.1875rem;
   margin-bottom: 0.85rem;
   padding: 0.425rem 0.425rem;
-  width: 100%; }
-  textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[type="password"]:focus, input[type="search"]:focus, input[type="tel"]:focus, input[type="text"]:focus, input[type="url"]:focus, input[type="color"]:focus, input[type="date"]:focus, input[type="datetime"]:focus, input[type="datetime-local"]:focus, input[type="month"]:focus, input[type="time"]:focus, input[type="week"]:focus, select[multiple=multiple]:focus {
-    outline: none; }
+  width: 100%;
+}
+
+textarea:focus,
+input[type="email"]:focus,
+input[type="number"]:focus,
+input[type="password"]:focus,
+input[type="search"]:focus,
+input[type="tel"]:focus,
+input[type="text"]:focus,
+input[type="url"]:focus,
+input[type="color"]:focus,
+input[type="date"]:focus,
+input[type="datetime"]:focus,
+input[type="datetime-local"]:focus,
+input[type="month"]:focus,
+input[type="time"]:focus,
+input[type="week"]:focus,
+select[multiple=multiple]:focus {
+  outline: none;
+}
 
 textarea {
-  resize: vertical; }
+  resize: vertical;
+}
 
-input[type="checkbox"], input[type="radio"] {
+input[type="checkbox"],
+input[type="radio"] {
   display: inline;
-  margin-right: 0.425rem; }
+  margin-right: 0.425rem;
+}
 
 input[type="file"] {
-  width: 100%; }
+  width: 100%;
+}
 
 select {
   width: auto;
   max-width: 100%;
-  margin-bottom: 1.7rem; }
+  margin-bottom: 1.7rem;
+}
 
 button,
 input[type="submit"] {
@@ -613,6 +808,7 @@ input[type="submit"] {
   user-select: none;
   vertical-align: middle;
   white-space: nowrap;
-  border: inherit; }
+  border: inherit;
+}
 
-/*# sourceMappingURL=nucleus.css.map */
+/*# sourceMappingURL=nucleus.css.map */
\ No newline at end of file
diff --git a/docs/document/static/css/theme-black.css b/docs/document/static/css/theme-black.css
index f0d5cca..faa5e9d 100644
--- a/docs/document/static/css/theme-black.css
+++ b/docs/document/static/css/theme-black.css
@@ -1,5 +1,7 @@
 @charset "UTF-8";
-#top-github-link, #body #breadcrumbs {
+
+#top-github-link,
+#body #breadcrumbs {
     position: relative;
     top: 50%;
     -webkit-transform: translateY(-50%);
@@ -8,13 +10,18 @@
     -ms-transform: translateY(-50%);
     transform: translateY(-50%);
 }
-.button, .button-secondary {
+
+.button,
+.button-secondary {
     display: inline-block;
     padding: 7px 12px;
 }
-.button:active, .button-secondary:active {
+
+.button:active,
+.button-secondary:active {
     margin: 2px 0 -2px 0;
 }
+
 @font-face {
     font-family: 'Novacento Sans Wide';
     src: url("../fonts/Novecentosanswide-UltraLight-webfont.eot");
@@ -22,82 +29,158 @@
     font-style: normal;
     font-weight: 200;
 }
+
 @font-face {
     font-family: 'Work Sans';
     font-style: normal;
     font-weight: 300;
     src: url("../fonts/Work_Sans_300.eot?#iefix") format("embedded-opentype"), url("../fonts/Work_Sans_300.woff") format("woff"), url("../fonts/Work_Sans_300.woff2") format("woff2"), url("../fonts/Work_Sans_300.svg#WorkSans") format("svg"), url("../fonts/Work_Sans_300.ttf") format("truetype");
 }
+
 @font-face {
     font-family: 'Work Sans';
     font-style: normal;
     font-weight: 500;
     src: url("../fonts/Work_Sans_500.eot?#iefix") format("embedded-opentype"), url("../fonts/Work_Sans_500.woff") format("woff"), url("../fonts/Work_Sans_500.woff2") format("woff2"), url("../fonts/Work_Sans_500.svg#WorkSans") format("svg"), url("../fonts/Work_Sans_500.ttf") format("truetype");
 }
+
 body {
     background: #fff;
     color: #777;
 }
+
 body #chapter h1 {
     font-size: 3.5rem;
 }
+
 @media only all and (min-width: 48em) and (max-width: 59.938em) {
     body #chapter h1 {
         font-size: 3rem;
     }
 }
+
 @media only all and (max-width: 47.938em) {
     body #chapter h1 {
         font-size: 2rem;
     }
 }
+
 a {
     /* color: #00bdf3; */
-    color: rgba(197, 43, 0, 0.77);
+    color: rgba(15, 88, 163, 1);
 }
+
 a:hover {
-    color: #0082a7;
+    /* color: #0082a7; */
+    color: #0a4f90;
 }
+
 pre {
     position: relative;
     color: #ffffff;
 }
+
 .bg {
     background: #fff;
     border: 1px solid #eaeaea;
 }
-b, strong, label, th {
+
+b,
+strong,
+label,
+th {
     font-weight: 600;
 }
-.default-animation, #header #logo-svg, #header #logo-svg path, #sidebar, #sidebar ul, #body, #body .padding, #body .nav {
-    -webkit-transition: backgroud-color  0.2s ease;
-    -moz-transition: backgroud-color  0.2s ease;
+
+.default-animation,
+#header #logo-svg,
+#header #logo-svg path,
+#sidebar,
+#sidebar ul,
+#body,
+#body .padding,
+#body .nav {
+    -webkit-transition: backgroud-color 0.2s ease;
+    -moz-transition: backgroud-color 0.2s ease;
     transition: backgroud-color 0.2s ease;
 }
+
 #grav-logo {
     max-width: 60%;
 }
+
 #grav-logo path {
     fill: #fff !important;
 }
+
 #sidebar {
     font-weight: 300 !important;
 }
+
 fieldset {
     border: 1px solid #ddd;
 }
-textarea, input[type="email"], input[type="number"], input[type="password"], input[type="search"], input[type="tel"], input[type="text"], input[type="url"], input[type="color"], input[type="date"], input[type="datetime"], input[type="datetime-local"], input[type="month"], input[type="time"], input[type="week"], select[multiple=multiple] {
+
+textarea,
+input[type="email"],
+input[type="number"],
+input[type="password"],
+input[type="search"],
+input[type="tel"],
+input[type="text"],
+input[type="url"],
+input[type="color"],
+input[type="date"],
+input[type="datetime"],
+input[type="datetime-local"],
+input[type="month"],
+input[type="time"],
+input[type="week"],
+select[multiple=multiple] {
     background-color: white;
     border: 1px solid #ddd;
     box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.06);
 }
-textarea:hover, input[type="email"]:hover, input[type="number"]:hover, input[type="password"]:hover, input[type="search"]:hover, input[type="tel"]:hover, input[type="text"]:hover, input[type="url"]:hover, input[type="color"]:hover, input[type="date"]:hover, input[type="datetime"]:hover, input[type="datetime-local"]:hover, input[type="month"]:hover, input[type="time"]:hover, input[type="week"]:hover, select[multiple=multiple]:hover {
+
+textarea:hover,
+input[type="email"]:hover,
+input[type="number"]:hover,
+input[type="password"]:hover,
+input[type="search"]:hover,
+input[type="tel"]:hover,
+input[type="text"]:hover,
+input[type="url"]:hover,
+input[type="color"]:hover,
+input[type="date"]:hover,
+input[type="datetime"]:hover,
+input[type="datetime-local"]:hover,
+input[type="month"]:hover,
+input[type="time"]:hover,
+input[type="week"]:hover,
+select[multiple=multiple]:hover {
     border-color: #c4c4c4;
 }
-textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[type="password"]:focus, input[type="search"]:focus, input[type="tel"]:focus, input[type="text"]:focus, input[type="url"]:focus, input[type="color"]:focus, input[type="date"]:focus, input[type="datetime"]:focus, input[type="datetime-local"]:focus, input[type="month"]:focus, input[type="time"]:focus, input[type="week"]:focus, select[multiple=multiple]:focus {
+
+textarea:focus,
+input[type="email"]:focus,
+input[type="number"]:focus,
+input[type="password"]:focus,
+input[type="search"]:focus,
+input[type="tel"]:focus,
+input[type="text"]:focus,
+input[type="url"]:focus,
+input[type="color"]:focus,
+input[type="date"]:focus,
+input[type="datetime"]:focus,
+input[type="datetime-local"]:focus,
+input[type="month"]:focus,
+input[type="time"]:focus,
+input[type="week"]:focus,
+select[multiple=multiple]:focus {
     border-color: #00bdf3;
-    box-shadow: inset 0 1px 3px rgba(0,0,0,.06),0 0 5px rgba(0,169,218,.7)
+    box-shadow: inset 0 1px 3px rgba(0, 0, 0, .06), 0 0 5px rgba(0, 169, 218, .7)
 }
+
 #header-wrapper {
     background: black;
     border-color: black;
@@ -105,16 +188,20 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     border-bottom: 4px solid black;
     padding: 1rem;
 }
+
 #header a {
     display: inline-block;
 }
+
 #header #logo-svg {
     width: 8rem;
     height: 2rem;
 }
+
 #header #logo-svg path {
     fill: #fff;
 }
+
 .searchbox {
     margin-top: 1rem;
     position: relative;
@@ -122,12 +209,14 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     background: #322A38;
     border-radius: 4px;
 }
+
 .searchbox label {
     color: rgba(255, 255, 255, 0.8);
     position: absolute;
     left: 10px;
     top: 3px;
 }
+
 .searchbox span {
     color: rgba(255, 255, 255, 0.6);
     position: absolute;
@@ -135,9 +224,11 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     top: 3px;
     cursor: pointer;
 }
+
 .searchbox span:hover {
     color: rgba(255, 255, 255, 0.9);
 }
+
 .searchbox input {
     display: inline-block;
     color: #fff;
@@ -149,28 +240,36 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     margin: 0;
     font-weight: 300;
 }
+
 .searchbox input::-webkit-input-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 .searchbox input::-moz-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 .searchbox input:-moz-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 .searchbox input:-ms-input-placeholder {
     color: rgba(255, 255, 255, 0.6);
 }
+
 #sidebar-toggle-span {
     display: none;
 }
+
 @media only all and (max-width: 47.938em) {
     #sidebar-toggle-span {
         display: inline;
     }
 }
+
 #sidebar {
-    background-color: #322A38;
+    /* background-color: #322A38; */
+    background-color: rgba(2, 30, 62, 0.95);
     position: fixed;
     top: 0;
     width: 300px;
@@ -179,26 +278,33 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     font-weight: 400;
     font-size: 15px;
 }
+
 #sidebar a {
     color: #ccc;
 }
+
 #sidebar a:hover {
     color: #e6e6e6;
 }
+
 #sidebar a.subtitle {
     color: rgba(204, 204, 204, 0.6);
 }
+
 #sidebar hr {
     border-bottom: 1px solid #2a232f;
 }
+
 #sidebar a.padding {
     padding: 0 1rem;
 }
+
 #sidebar h5 {
     margin: 2rem 0 0;
     position: relative;
     line-height: 2;
 }
+
 #sidebar h5 a {
     display: block;
     margin-left: 0;
@@ -206,6 +312,7 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     padding-left: 1rem;
     padding-right: 1rem;
 }
+
 #sidebar h5 i {
     color: rgba(204, 204, 204, 0.6);
     position: absolute;
@@ -213,73 +320,96 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     top: 0.7rem;
     font-size: 80%;
 }
+
 #sidebar h5.parent a {
     background: #201b24;
     color: #d9d9d9 !important;
 }
+
 #sidebar h5.active a {
     background: #fff;
     color: #777 !important;
 }
+
 #sidebar h5.active i {
     color: #777 !important;
 }
-#sidebar h5 + ul.topics {
+
+#sidebar h5+ul.topics {
     display: none;
     margin-top: 0;
 }
-#sidebar h5.parent + ul.topics, #sidebar h5.active + ul.topics {
+
+#sidebar h5.parent+ul.topics,
+#sidebar h5.active+ul.topics {
     display: block;
 }
+
 #sidebar ul {
     list-style: none;
     padding: 0;
     margin: 0;
 }
+
 #sidebar ul.searched a {
     color: #999999;
 }
+
 #sidebar ul.searched .search-match a {
     color: #e6e6e6;
 }
+
 #sidebar ul.searched .search-match a:hover {
     color: white;
 }
+
 #sidebar ul.topics {
     margin: 0 1rem;
 }
+
 #sidebar ul.topics.searched ul {
     display: block;
 }
+
 #sidebar ul.topics ul {
     display: none;
     padding-bottom: 1rem;
 }
+
 #sidebar ul.topics ul ul {
     padding-bottom: 0;
 }
-#sidebar ul.topics li.parent>ul, #sidebar ul.topics > li.active>ul {
+
+#sidebar ul.topics li.parent>ul,
+#sidebar ul.topics>li.active>ul {
     display: block;
 }
-#sidebar ul.topics > li > a {
+
+#sidebar ul.topics>li>a {
     line-height: 2rem;
     font-size: 1.1rem;
 }
-#sidebar ul.topics > li > a b {
+
+#sidebar ul.topics>li>a b {
     opacity: 0.5;
     font-weight: normal;
 }
-#sidebar ul.topics > li > a .fa {
+
+#sidebar ul.topics>li>a .fa {
     margin-top: 9px;
 }
-#sidebar ul.topics > li.parent, #sidebar ul.topics > li.active {
-    background: #251f29;
+
+#sidebar ul.topics>li.parent,
+#sidebar ul.topics>li.active {
+    /* background: #251f29; */
+    background: rgba(88, 100, 120, 0.41);
     margin-left: -1rem;
     margin-right: -1rem;
     padding-left: 1rem;
     padding-right: 1rem;
 }
-#sidebar ul li.active > a {
+
+#sidebar ul li.active>a {
     background: #fff;
     color: #777 !important;
     margin-left: -1rem;
@@ -287,81 +417,104 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     padding-left: 1rem;
     padding-right: 1rem;
 }
+
 #sidebar ul li {
     padding: 0;
 }
-#sidebar ul li.visited + span {
+
+#sidebar ul li.visited+span {
     margin-right: 16px;
 }
+
 #sidebar ul li a {
     display: block;
     padding: 2px 0;
 }
+
 #sidebar ul li a span {
     text-overflow: ellipsis;
     overflow: hidden;
     white-space: nowrap;
     display: block;
 }
-#sidebar ul li > a {
+
+#sidebar ul li>a {
     padding: 4px 0;
 }
-#sidebar ul li.visited > a .read-icon {
+
+#sidebar ul li.visited>a .read-icon {
     color: #9c6fb6;
     display: inline;
 }
+
 #sidebar ul li li {
     padding-left: 1rem;
     text-indent: 0.2rem;
 }
+
 #main {
     background: #f7f7f7;
     margin: 0 0 1.563rem 0;
 }
+
 #body {
     position: relative;
     margin-left: 300px;
     min-height: 100%;
 }
-#body img, #body .video-container {
+
+#body img,
+#body .video-container {
     margin: auto;
     text-align: left;
     display: inherit;
-    max-width: 100%; /* set img size */
+    max-width: 100%;
+    /* set img size */
 }
-#body img.border, #body .video-container.border {
+
+#body img.border,
+#body .video-container.border {
     border: 2px solid #e6e6e6 !important;
     padding: 2px;
 }
-#body img.shadow, #body .video-container.shadow {
+
+#body img.shadow,
+#body .video-container.shadow {
     box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
 }
+
 #body img.inline {
     display: inline !important;
     margin: 0 !important;
     vertical-align: bottom;
 }
+
 #body .bordered {
     border: 1px solid #ccc;
 }
+
 #body .padding {
     padding: 3rem 6rem;
 }
+
 @media only all and (max-width: 59.938em) {
     #body .padding {
         position: static;
         padding: 15px 3rem;
     }
 }
+
 @media only all and (max-width: 47.938em) {
     #body .padding {
         padding: 5px 1rem;
     }
 }
-#body h1 + hr {
+
+#body h1+hr {
     margin-top: -1.7rem;
     margin-bottom: 3rem;
 }
+
 @media only all and (max-width: 59.938em) {
     #body #navigation {
         position: static;
@@ -370,6 +523,7 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
         display: table;
     }
 }
+
 #body .nav {
     position: fixed;
     top: 0;
@@ -381,11 +535,13 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     display: table;
     text-align: center;
 }
-#body .nav > i {
+
+#body .nav>i {
     display: table-cell;
     vertical-align: middle;
     text-align: center;
 }
+
 @media only all and (max-width: 59.938em) {
     #body .nav {
         display: table-cell;
@@ -397,22 +553,28 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
         line-height: 100px;
         padding-top: 0;
     }
-    #body .nav > i {
+
+    #body .nav>i {
         display: inline-block;
     }
 }
+
 #body .nav:hover {
     background: #F6F6F6;
 }
+
 #body .nav.nav-pref {
     left: 0;
 }
+
 #body .nav.nav-next {
     right: 0;
 }
+
 #body-inner {
     margin-bottom: 5rem;
 }
+
 #chapter {
     display: flex;
     align-items: center;
@@ -420,30 +582,37 @@ textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[typ
     height: 100%;
     padding: 2rem 0;
 }
+
 #chapter #body-inner {
     padding-bottom: 3rem;
     max-width: 90%;
 }
+
 #chapter h3 {
     font-family: "Work Sans", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     font-weight: 300;
     text-align: center;
 }
+
 #chapter h1 {
     font-size: 5rem;
     border-bottom: 4px solid #F0F2F4;
 }
+
 #chapter p {
     text-align: left;
 }
+
 #footer {
     padding: 3rem 1rem;
     color: #b3b3b3;
     font-size: 13px;
 }
+
 #footer p {
     margin: 0;
 }
+
 body {
     font-family: "Work Sans", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     font-weight: 300;
@@ -451,13 +620,19 @@ body {
     /* font-size: 18px !important; */
     font-size: 16px !important;
 }
-h2, h3, h4, h5, h6 {
+
+h2,
+h3,
+h4,
+h5,
+h6 {
     font-family: "Work Sans", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     text-rendering: optimizeLegibility;
     color: #5e5e5e;
     font-weight: 400;
     letter-spacing: -1px;
 }
+
 h1 {
     font-family: "Novacento Sans Wide", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
     text-align: center;
@@ -465,23 +640,28 @@ h1 {
     color: #222;
     font-weight: 200;
 }
+
 blockquote {
     border-left: 10px solid #F0F2F4;
 }
+
 blockquote p {
     font-size: 1.1rem;
     color: #999;
 }
+
 blockquote cite {
     display: block;
     text-align: right;
     color: #666;
     font-size: 1.2rem;
 }
+
 div.notices {
     margin: 2rem 0;
     position: relative;
 }
+
 div.notices p {
     padding: 15px;
     display: block;
@@ -490,6 +670,7 @@ div.notices p {
     margin-bottom: 0rem;
     color: #666;
 }
+
 div.notices p:first-child:before {
     position: absolute;
     top: 2px;
@@ -498,37 +679,46 @@ div.notices p:first-child:before {
     content: '';
     left: 10px;
 }
+
 div.notices p:first-child:after {
     position: absolute;
     top: 2px;
     color: #fff;
     left: 2rem;
 }
+
 div.notices.info p {
     border-top: 30px solid #F0B37E;
     background: #FFF2DB;
 }
+
 div.notices.info p:first-child:after {
     content: 'Info';
 }
+
 div.notices.warning p {
     border-top: 30px solid rgba(217, 83, 79, 0.8);
     background: #FAE2E2;
 }
+
 div.notices.warning p:first-child:after {
     content: 'Warning';
 }
+
 div.notices.note p {
     border-top: 30px solid #6AB0DE;
     background: #E7F2FA;
 }
+
 div.notices.note p:first-child:after {
     content: 'Note';
 }
+
 div.notices.tip p {
     border-top: 30px solid rgba(92, 184, 92, 0.8);
     background: #E6F9E6;
 }
+
 div.notices.tip p:first-child:after {
     content: 'Tip';
 }
@@ -600,42 +790,52 @@ section.attachments.grey .attachments-files {
     font-size: small;
     margin-top: 0px;
     padding-top: 0px;
-    margin-bottom:  0px;
+    margin-bottom: 0px;
     padding-bottom: 0px;
 }
+
 .children-li p {
     font-size: small;
     font-style: italic;
 
 }
-.children-h2 p, .children-h3 p {
+
+.children-h2 p,
+.children-h3 p {
     font-size: small;
     margin-top: 0px;
     padding-top: 0px;
-    margin-bottom:  0px;
+    margin-bottom: 0px;
     padding-bottom: 0px;
 }
-.children h3,.children h2 {
+
+.children h3,
+.children h2 {
     margin-bottom: 0px;
     margin-top: 5px;
 }
 
-code, kbd, pre, samp {
+code,
+kbd,
+pre,
+samp {
     font-family: "Consolas", menlo, monospace;
     font-size: 92%;
 }
+
 code {
     border-radius: 2px;
     white-space: nowrap;
     color: #5e5e5e;
     /* background: #FFF7DD; */
-    background: rgba(244, 51, 12, 0.42);
+    background: rgba(40, 130, 209, 0.23);
     border-radius: 0.5rem;
     /* border: 1px solid #fbf0cb; */
     /* padding: 0px 2px; */
     padding: 0px 5px;
 }
-code + .copy-to-clipboard {
+
+code+.copy-to-clipboard {
     margin-left: -1px;
     border-left: 0 !important;
     font-size: inherit !important;
@@ -643,6 +843,7 @@ code + .copy-to-clipboard {
     height: 21px;
     top: 0;
 }
+
 pre {
     padding: 1rem;
     margin: 2rem 0;
@@ -651,6 +852,7 @@ pre {
     border-radius: 2px;
     line-height: 1.15;
 }
+
 pre code {
     color: whitesmoke;
     background: inherit;
@@ -660,9 +862,11 @@ pre code {
     margin: 0;
     font-size: 15px;
 }
+
 hr {
     border-bottom: 4px solid #F0F2F4;
 }
+
 .page-title {
     margin-top: -25px;
     padding: 25px;
@@ -671,106 +875,132 @@ hr {
     background: #9c6fb6;
     color: #fff;
 }
+
 #body a.anchor-link {
     color: #ccc;
 }
+
 #body a.anchor-link:hover {
     color: #9c6fb6;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges {
     background: #1d1f21;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges .tabs-nav li {
     font-size: 0.9rem;
     text-transform: uppercase;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges .tabs-nav li a {
     background: #35393c;
 }
+
 #body-inner .tabs-wrapper.ui-theme-badges .tabs-nav li.current a {
     background: #4d5257;
 }
+
 #body-inner pre {
     white-space: pre-wrap;
 }
+
 .tabs-wrapper pre {
     margin: 1rem 0;
     border: 0;
     padding: 0;
     background: inherit;
 }
+
 table {
     border: 1px solid #eaeaea;
     table-layout: auto;
 }
+
 th {
     background: #f7f7f7;
     padding: 0.5rem;
 }
+
 td {
     padding: 0.5rem;
     border: 1px solid #eaeaea;
 }
+
 .button {
     background: #9c6fb6;
     color: #fff;
     box-shadow: 0 3px 0 #00a5d4;
 }
+
 .button:hover {
     background: #00a5d4;
     box-shadow: 0 3px 0 #008db6;
     color: #fff;
 }
+
 .button:active {
     box-shadow: 0 1px 0 #008db6;
 }
+
 .button-secondary {
     background: #F8B450;
     color: #fff;
     box-shadow: 0 3px 0 #f7a733;
 }
+
 .button-secondary:hover {
     background: #f7a733;
     box-shadow: 0 3px 0 #f69b15;
     color: #fff;
 }
+
 .button-secondary:active {
     box-shadow: 0 1px 0 #f69b15;
 }
+
 .bullets {
     margin: 1.7rem 0;
     margin-left: -0.85rem;
     margin-right: -0.85rem;
     overflow: auto;
 }
+
 .bullet {
     float: left;
     padding: 0 0.85rem;
 }
+
 .two-column-bullet {
     width: 50%;
 }
+
 @media only all and (max-width: 47.938em) {
     .two-column-bullet {
         width: 100%;
     }
 }
+
 .three-column-bullet {
     width: 33.33333%;
 }
+
 @media only all and (max-width: 47.938em) {
     .three-column-bullet {
         width: 100%;
     }
 }
+
 .four-column-bullet {
     width: 25%;
 }
+
 @media only all and (max-width: 47.938em) {
     .four-column-bullet {
         width: 100%;
     }
 }
+
 .bullet-icon {
     float: left;
     background: #9c6fb6;
@@ -782,21 +1012,27 @@ td {
     font-size: 1.75rem;
     text-align: center;
 }
+
 .bullet-icon-1 {
     background: #9c6fb6;
 }
+
 .bullet-icon-2 {
     background: #00f3d8;
 }
+
 .bullet-icon-3 {
     background: #e6f300;
 }
+
 .bullet-content {
     margin-left: 4.55rem;
 }
+
 .tooltipped {
     position: relative;
 }
+
 .tooltipped:after {
     position: absolute;
     z-index: 1000000;
@@ -817,6 +1053,7 @@ td {
     border-radius: 3px;
     -webkit-font-smoothing: subpixel-antialiased;
 }
+
 .tooltipped:before {
     position: absolute;
     z-index: 1000001;
@@ -828,59 +1065,85 @@ td {
     content: "";
     border: 5px solid transparent;
 }
-.tooltipped:hover:before, .tooltipped:hover:after, .tooltipped:active:before, .tooltipped:active:after, .tooltipped:focus:before, .tooltipped:focus:after {
+
+.tooltipped:hover:before,
+.tooltipped:hover:after,
+.tooltipped:active:before,
+.tooltipped:active:after,
+.tooltipped:focus:before,
+.tooltipped:focus:after {
     display: inline-block;
     text-decoration: none;
 }
-.tooltipped-s:after, .tooltipped-se:after, .tooltipped-sw:after {
+
+.tooltipped-s:after,
+.tooltipped-se:after,
+.tooltipped-sw:after {
     top: 100%;
     right: 50%;
     margin-top: 5px;
 }
-.tooltipped-s:before, .tooltipped-se:before, .tooltipped-sw:before {
+
+.tooltipped-s:before,
+.tooltipped-se:before,
+.tooltipped-sw:before {
     top: auto;
     right: 50%;
     bottom: -5px;
     margin-right: -5px;
     border-bottom-color: rgba(0, 0, 0, 0.8);
 }
+
 .tooltipped-se:after {
     right: auto;
     left: 50%;
     margin-left: -15px;
 }
+
 .tooltipped-sw:after {
     margin-right: -15px;
 }
-.tooltipped-n:after, .tooltipped-ne:after, .tooltipped-nw:after {
+
+.tooltipped-n:after,
+.tooltipped-ne:after,
+.tooltipped-nw:after {
     right: 50%;
     bottom: 100%;
     margin-bottom: 5px;
 }
-.tooltipped-n:before, .tooltipped-ne:before, .tooltipped-nw:before {
+
+.tooltipped-n:before,
+.tooltipped-ne:before,
+.tooltipped-nw:before {
     top: -5px;
     right: 50%;
     bottom: auto;
     margin-right: -5px;
     border-top-color: rgba(0, 0, 0, 0.8);
 }
+
 .tooltipped-ne:after {
     right: auto;
     left: 50%;
     margin-left: -15px;
 }
+
 .tooltipped-nw:after {
     margin-right: -15px;
 }
-.tooltipped-s:after, .tooltipped-n:after {
+
+.tooltipped-s:after,
+.tooltipped-n:after {
     transform: translateX(50%);
 }
+
 .tooltipped-w:after {
     right: 100%;
     bottom: 50%;
     margin-right: 5px;
     transform: translateY(50%);
 }
+
 .tooltipped-w:before {
     top: 50%;
     bottom: 50%;
@@ -888,12 +1151,14 @@ td {
     margin-top: -5px;
     border-left-color: rgba(0, 0, 0, 0.8);
 }
+
 .tooltipped-e:after {
     bottom: 50%;
     left: 100%;
     margin-left: 5px;
     transform: translateY(50%);
 }
+
 .tooltipped-e:before {
     top: 50%;
     right: -5px;
@@ -901,46 +1166,61 @@ td {
     margin-top: -5px;
     border-right-color: rgba(0, 0, 0, 0.8);
 }
+
 .highlightable {
     padding: 1rem 0 1rem;
     overflow: auto;
     position: relative;
 }
-.hljs::selection, .hljs span::selection {
+
+.hljs::selection,
+.hljs span::selection {
     background: #b7b7b7;
 }
+
 .lightbox-active #body {
     overflow: visible;
 }
+
 .lightbox-active #body .padding {
     overflow: visible;
 }
+
 #github-contrib i {
     vertical-align: middle;
 }
+
 .featherlight img {
     margin: 0 !important;
 }
+
 .lifecycle #body-inner ul {
     list-style: none;
     margin: 0;
     padding: 2rem 0 0;
     position: relative;
 }
+
 .lifecycle #body-inner ol {
     margin: 1rem 0 1rem 0;
     padding: 2rem;
     position: relative;
 }
+
 .lifecycle #body-inner ol li {
     margin-left: 1rem;
 }
-.lifecycle #body-inner ol strong, .lifecycle #body-inner ol label, .lifecycle #body-inner ol th {
+
+.lifecycle #body-inner ol strong,
+.lifecycle #body-inner ol label,
+.lifecycle #body-inner ol th {
     text-decoration: underline;
 }
+
 .lifecycle #body-inner ol ol {
     margin-left: -1rem;
 }
+
 .lifecycle #body-inner h3[class*='level'] {
     font-size: 20px;
     position: absolute;
@@ -951,57 +1231,69 @@ td {
     color: #fff;
     background: #1ABC9C;
 }
+
 .lifecycle #body-inner ol h3 {
     margin-top: 1rem !important;
     right: 2rem !important;
 }
-.lifecycle #body-inner .level-1 + ol {
+
+.lifecycle #body-inner .level-1+ol {
     background: #f6fefc;
     border: 4px solid #1ABC9C;
     color: #16A085;
 }
-.lifecycle #body-inner .level-1 + ol h3 {
+
+.lifecycle #body-inner .level-1+ol h3 {
     background: #2ECC71;
 }
-.lifecycle #body-inner .level-2 + ol {
+
+.lifecycle #body-inner .level-2+ol {
     background: #f7fdf9;
     border: 4px solid #2ECC71;
     color: #27AE60;
 }
-.lifecycle #body-inner .level-2 + ol h3 {
+
+.lifecycle #body-inner .level-2+ol h3 {
     background: #3498DB;
 }
-.lifecycle #body-inner .level-3 + ol {
+
+.lifecycle #body-inner .level-3+ol {
     background: #f3f9fd;
     border: 4px solid #3498DB;
     color: #2980B9;
 }
-.lifecycle #body-inner .level-3 + ol h3 {
+
+.lifecycle #body-inner .level-3+ol h3 {
     background: #34495E;
 }
-.lifecycle #body-inner .level-4 + ol {
+
+.lifecycle #body-inner .level-4+ol {
     background: #e4eaf0;
     border: 4px solid #34495E;
     color: #2C3E50;
 }
-.lifecycle #body-inner .level-4 + ol h3 {
+
+.lifecycle #body-inner .level-4+ol h3 {
     background: #34495E;
 }
+
 #top-bar {
     /* background: #F6F6F6; */
-    background: rgba(255, 237, 226, 0.9);
+    background: rgba(195, 211, 229, 0.82);
     /* border-radius: 2px; */
     border-radius: 4px;
     padding: 0 1rem;
     height: 0;
     min-height: 3rem;
 }
+
 #top-github-link {
     position: relative;
     z-index: 1;
     float: right;
     display: block;
 }
+
 #body #breadcrumbs {
     height: auto;
     margin-bottom: 0;
@@ -1014,36 +1306,45 @@ td {
     display: inline-block;
     float: left;
 }
+
 #body #breadcrumbs span {
     padding: 0 0.1rem;
 }
+
 @media only all and (max-width: 59.938em) {
     #sidebar {
         width: 230px;
     }
+
     #body {
         margin-left: 230px;
     }
 }
+
 @media only all and (max-width: 47.938em) {
     #sidebar {
         width: 230px;
         left: -230px;
     }
+
     #body {
         margin-left: 0;
         width: 100%;
     }
+
     .sidebar-hidden {
         overflow: hidden;
     }
+
     .sidebar-hidden #sidebar {
         left: 0;
     }
+
     .sidebar-hidden #body {
         margin-left: 230px;
         overflow: hidden;
     }
+
     .sidebar-hidden #overlay {
         position: absolute;
         left: 0;
@@ -1055,6 +1356,7 @@ td {
         cursor: pointer;
     }
 }
+
 .copy-to-clipboard {
     background-image: none;
     background-position: 50% 50%;
@@ -1073,9 +1375,11 @@ td {
     border-radius: 0 2px 2px 0;
     margin-bottom: 1px;
 }
+
 .copy-to-clipboard:hover {
     background-color: #E8E2CD;
 }
+
 pre .copy-to-clipboard {
     position: absolute;
     right: 4px;
@@ -1084,17 +1388,19 @@ pre .copy-to-clipboard {
     color: #ccc;
     border-radius: 2px;
 }
+
 pre .copy-to-clipboard:hover {
     background-color: #656c72;
     color: #fff;
 }
+
 .parent-element {
     -webkit-transform-style: preserve-3d;
     -moz-transform-style: preserve-3d;
     transform-style: preserve-3d;
 }
 
-#sidebar ul.topics > li > a .read-icon {
+#sidebar ul.topics>li>a .read-icon {
     margin-top: 9px;
 }
 
@@ -1117,15 +1423,16 @@ pre .copy-to-clipboard:hover {
     margin: 4px 0 0 0;
     text-align: right;
 }
-#sidebar ul li.visited > a .read-icon {
+
+#sidebar ul li.visited>a .read-icon {
     color: #00bdf3;
     display: inline;
 }
 
 #sidebar #shortcuts h3 {
     font-family: "Novacento Sans Wide", "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
-    color: white ;
-    margin-top:1rem;
+    color: white;
+    margin-top: 1rem;
     padding-left: 1rem;
 }
 
@@ -1133,4 +1440,4 @@ pre .copy-to-clipboard:hover {
     text-align: left;
 }
 
-/*# sourceMappingURL=theme.css.map */
+/*# sourceMappingURL=theme.css.map */
\ No newline at end of file
diff --git a/docs/document/themes/hugo-theme-learn/static/css/nucleus.css b/docs/document/themes/hugo-theme-learn/static/css/nucleus.css
index eab44b1..d25224f 100644
--- a/docs/document/themes/hugo-theme-learn/static/css/nucleus.css
+++ b/docs/document/themes/hugo-theme-learn/static/css/nucleus.css
@@ -106,7 +106,8 @@ input,
 optgroup,
 select,
 textarea {
-  color: gray;
+  /* color: gray; */
+  color: rgba(200, 200, 200, 1);
   font: inherit;
   margin: 0; }