style.css

@import url('https://fonts.googleapis.com/css?family=Inconsolata|Inconsolata-Bold');

*{
  -webkit-font-smoothing: antialiased;
  -webkit-overflow-scrolling: touch;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-text-size-adjust: none;
  -webkit-touch-callout: none;
  box-sizing: border-box;
}

body:not(.ready){
  overflow: hidden;
}

body:not(.ready) [data-cloak], body:not(.ready) .app-nav{
  display: none;
}

div#app{
  font-size: 30px;
  font-weight: lighter;
  margin: 40vh auto;
  text-align: center;
}

div#app:empty::before{
  content: "Loading...";
}

.emoji{
  height: 19.2px;
  height: 1.2rem;
  vertical-align: middle;
}

.progress{
  background-color: #0074D9;
  background-color: var(--theme-color, #0074D9);
  height: 2px;
  left: 0px;
  position: fixed;
  right: 0px;
  top: 0px;
  transition: width 0.2s, opacity 0.4s;
  width: 0%;
  z-index: 999999;
}

.search a:hover{
  color: #0074D9;
  color: var(--theme-color, #0074D9);
}

.search .search-keyword{
  color: #0074D9;
  color: var(--theme-color, #0074D9);
  font-style: normal;
}

html, body{
  height: 100%;
}

body{
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  color: #34495e;
  font-family: 'Source Sans Pro', 'Helvetica Neue', Arial, sans-serif;
  font-size: 17px;
  letter-spacing: 0;
  margin: 0;
  overflow-x: hidden;
}

img{
  max-width: 100%;
}

kbd{
  border: solid 1px #ccc;
  border-radius: 3px;
  display: inline-block;
  font-size: 12px !important;
  line-height: 12px;
  margin-bottom: 3px;
  padding: 3px 5px;
  vertical-align: middle;
}

/* navbar */

.app-nav{
  left: 0;
  margin: 25px 60px 0 0;
  position: absolute;
  right: 0;
  text-align: right;
  z-index: 10;
}

.app-nav p{
  margin: 0;
}

.app-nav >a{
  margin: 0 16px;
  margin: 0 1rem;
  padding: 5px 0;
}

.app-nav ul, .app-nav li{
  display: inline-block;
  list-style: none;
  margin: 0;
}

.app-nav a{
  color: inherit;
  font-size: 16px;
  text-decoration: none;
  transition: color .3s;
}

.app-nav a:hover{
  color: #0074D9;
  color: var(--theme-color, #0074D9);
}

.app-nav a.active{
  border-bottom: 2px solid #0074D9;
  border-bottom: 2px solid var(--theme-color, #0074D9);
  color: #0074D9;
  color: var(--theme-color, #0074D9);
}

/* navbar dropdown */

.app-nav li{
  display: inline-block;
  margin: 0 16px;
  margin: 0 1rem;
  padding: 5px 0;
  position: relative;
}

.app-nav li ul{
  background-color: #fff;
  border: 1px solid #ddd;
  border-bottom-color: #ccc;
  border-radius: 4px;
  box-sizing: border-box;
  display: none;
  max-height: calc(100vh - 61px);
  overflow-y: scroll;
  padding: 10px 0;
  position: absolute;
  right: -15px;
  text-align: left;
  top: 100%;
  white-space: nowrap;
}

.app-nav li ul li{
  display: block;
  font-size: 14px;
  line-height: 16px;
  line-height: 1rem;
  margin: 0;
  margin: 8px 14px;
  white-space: nowrap;
}

.app-nav li ul a{
  display: block;
  font-size: inherit;
  margin: 0;
  padding: 0;
}

.app-nav li ul a.active{
  border-bottom: 0;
}

.app-nav li:hover ul{
  display: block;
}

.app-nav.no-badge{
  margin-right: 25px;
}

/* github corner */

.github-corner{
  border-bottom: 0;
  position: fixed;
  right: 0;
  text-decoration: none;
  top: 0;
  z-index: 1;
}

.github-corner svg{
  color: #fff;
  fill: #0074D9;
  fill: var(--theme-color, #0074D9);
  height: 80px;
  width: 80px;
}

.github-corner:hover .octo-arm{
  -webkit-animation: octocat-wave 560ms ease-in-out;
          animation: octocat-wave 560ms ease-in-out;
}

/* main */

main{
  display: block;
  position: relative;
  width: 100vw;
  height: 100%;
}

.anchor{
  display: inline-block;
  text-decoration: none;
  transition: all .3s;
}

.anchor span{
  color: #34495e;
}

.anchor:hover{
  text-decoration: underline;
}

/* sidebar */

.sidebar{
  border-right: 1px solid rgba(0, 0, 0, .07);
  overflow-y: auto;
  padding: 40px 0;
  top: 0;
  bottom: 0;
  left: 0;
  position: absolute;
  transition: -webkit-transform 250ms ease-out;
  transition: transform 250ms ease-out;
  transition: transform 250ms ease-out, -webkit-transform 250ms ease-out;
  width: 256px;
  width: 16rem;
  z-index: 20;
}

.sidebar > h1{
  margin: 0 auto 16px;
  margin: 0 auto 1rem;
  font-size: 24px;
  font-size: 1.5rem;
  font-weight: 300;
  text-align: center;
}

.sidebar > h1 a{
  color: inherit;
  text-decoration: none;
}

.sidebar > h1 .app-nav{
  display: block;
  position: static;
}

.sidebar ul{
  margin: 0;
  padding: 0;
}

.sidebar li>p{
  font-weight: 700;
  margin: 0;
}

.sidebar ul, .sidebar ul li{
  list-style: none;
}

.sidebar ul li a{
  border-bottom: none;
  display: block;
}

.sidebar ul li ul{
  padding-left: 20px;
}

.sidebar::-webkit-scrollbar{
  width: 4px;
}

.sidebar::-webkit-scrollbar-thumb{
  background: transparent;
  border-radius: 4px;
}

.sidebar:hover::-webkit-scrollbar-thumb{
  background: rgba(136, 136, 136, 0.4);
}

.sidebar:hover::-webkit-scrollbar-track{
  background: rgba(136, 136, 136, 0.1);
}

/* sidebar toggle */

.sidebar-toggle{
  background-color: transparent;
  background-color: rgba(255, 255, 255, 0.8);
  border: 0;
  outline: none;
  outline: none;
  padding: 10px;
  bottom: 0;
  left: 0;
  position: absolute;
  text-align: center;
  transition: opacity .3s;
  width: 30px;
  width: calc(16rem - 16px);
  z-index: 30;
}

.sidebar-toggle .sidebar-toggle-button:hover{
  opacity: .4;
}

.sidebar-toggle span{
  background-color: #0074D9;
  background-color: var(--theme-color, #0074D9);
  display: block;
  margin-bottom: 4px;
  width: 16px;
  height: 2px;
}

body.sticky .sidebar, body.sticky .sidebar-toggle{
  position: fixed;
}

/* main content */

.content{
  padding-top: 20px;
  top: 0;
  right: 0;
  bottom: 0;
  left: 256px;
  left: 16rem;
  position: absolute;
  transition: left 250ms ease;
}

/* markdown content found on pages */

.markdown-section{
  margin: 0 auto 0 0;
  max-width: 800px;
  padding: 30px 15px 40px 15px;
  position: relative;
}

.markdown-section > *{
  box-sizing: border-box;
  font-size: inherit;
}

.markdown-section >:first-child{
  margin-top: 0!important;
}

.markdown-section hr{
  border: none;
  border-bottom: 1px solid #eee;
  margin: 2em 0;
}

.markdown-section table{
  border-collapse: collapse;
  border-spacing: 0;
  display: block;
  margin-bottom: 16px;
  margin-bottom: 1rem;
  overflow: auto;
  width: 100%;
}

.markdown-section th{
  border: 1px solid #ddd;
  font-weight: 700;
  padding: 6px 13px;
}

.markdown-section td{
  border: 1px solid #ddd;
  padding: 6px 13px;
}

.markdown-section tr{
  border-top: 1px solid #ccc;
}

.markdown-section tr:nth-child(2n){
  background-color: #f8f8f8;
}

.markdown-section p.tip{
  background-color: #f8f8f8;
  border-bottom-right-radius: 2px;
  border-left: 4px solid #f66;
  border-top-right-radius: 2px;
  margin: 2em 0;
  padding: 12px 24px 12px 30px;
  position: relative;
}

.markdown-section p.tip code{
  background-color: #efefef;
}

.markdown-section p.tip em{
  color: #34495e;
}

.markdown-section p.tip:before{
  background-color: #f66;
  border-radius: 100%;
  color: #fff;
  content: "!";
  font-family: 'Dosis', 'Source Sans Pro', 'Helvetica Neue', Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  left: -12px;
  line-height: 20px;
  position: absolute;
  width: 20px;
  height: 20px;
  text-align: center;
  top: 14px;
}

.markdown-section p.warn{
  background: rgba(0, 116, 217, 0.1);
  border-radius: 2px;
  padding: 16px;
  padding: 1rem;
}

body.close .sidebar{
  -webkit-transform: translateX(-16rem);
          transform: translateX(-16rem);
}

body.close .sidebar-toggle{
  width: auto;
}

body.close .content{
  left: 0;
}

@media print{

  .github-corner, .sidebar-toggle, .sidebar{
    display: none;
  }

  .app-nav{
    display: none;
  }
}

@media screen and (max-width: 768px){

  .github-corner, .sidebar-toggle, .sidebar{
    position: fixed;
  }

  .app-nav{
    margin-top: 16px;
  }

  .app-nav li ul{
    top: 30px;
  }

  main{
    height: auto;
    overflow-x: hidden;
  }

  .sidebar{
    left: -16rem;
    transition: -webkit-transform 250ms ease-out;
    transition: transform 250ms ease-out;
    transition: transform 250ms ease-out, -webkit-transform 250ms ease-out;
  }

  .content{
    left: 0;
    max-width: 100vw;
    position: static;
    transition: -webkit-transform 250ms ease;
    transition: transform 250ms ease;
    transition: transform 250ms ease, -webkit-transform 250ms ease;
  }

  .app-nav, .github-corner{
    transition: -webkit-transform 250ms ease-out;
    transition: transform 250ms ease-out;
    transition: transform 250ms ease-out, -webkit-transform 250ms ease-out;
  }

  .sidebar-toggle{
    background-color: transparent;
    width: auto;
  }

  body.close .sidebar{
    -webkit-transform: translateX(16rem);
            transform: translateX(16rem);
  }

  body.close .sidebar-toggle{
    background-color: rgba(255, 255, 255, 0.8);
    transition: 1s background-color;
    width: calc(16rem - 16px);
  }

  body.close .content{
    -webkit-transform: translateX(16rem);
            transform: translateX(16rem);
  }

  body.close .app-nav, body.close .github-corner{
    display: none;
  }

  .github-corner .octo-arm{
    -webkit-animation: octocat-wave 560ms ease-in-out;
            animation: octocat-wave 560ms ease-in-out;
  }

  .github-corner:hover .octo-arm{
    -webkit-animation: none;
            animation: none;
  }
}

@-webkit-keyframes octocat-wave{

  0%, 100%{
    -webkit-transform: rotate(0);
            transform: rotate(0);
  }

  20%, 60%{
    -webkit-transform: rotate(-25deg);
            transform: rotate(-25deg);
  }

  40%, 80%{
    -webkit-transform: rotate(10deg);
            transform: rotate(10deg);
  }
}

@keyframes octocat-wave{

  0%, 100%{
    -webkit-transform: rotate(0);
            transform: rotate(0);
  }

  20%, 60%{
    -webkit-transform: rotate(-25deg);
            transform: rotate(-25deg);
  }

  40%, 80%{
    -webkit-transform: rotate(10deg);
            transform: rotate(10deg);
  }
}
section.cover{
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  height: 100vh;
  display: none;
}
section.cover .cover-main{
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
  margin: -20px 16px 0;
  text-align: center;
  z-index: 1;
}
section.cover a{
  color: inherit;
  text-decoration: none;
}
section.cover a:hover{
  text-decoration: none;
}
section.cover p{
  line-height: 24px;
  line-height: 1.5rem;
  margin: 1em 0;
}
section.cover h1{
  color: inherit;
  font-size: 40px;
  font-size: 2.5rem;
  font-weight: 300;
  margin: 10px 0 40px;
  margin: .625rem 0 2.5rem;
  position: relative;
  text-align: center;
}
section.cover h1 a{
  display: block;
}
section.cover h1 small{
  bottom: -7px;
  bottom: -.4375rem;
  font-size: 16px;
  font-size: 1rem;
  position: absolute;
}
section.cover blockquote{
  font-size: 24px;
  font-size: 1.5rem;
  text-align: center;
}
section.cover ul{
  line-height: 1.8;
  list-style-type: none;
  margin: 1em auto;
  max-width: 500px;
  padding: 0;
}
section.cover .cover-main > p:last-child a{
  border-color: #0074D9;
  border-color: var(--theme-color, #0074D9);
  border-radius: 2rem;
  border-style: solid;
  border-width: 1px;
  box-sizing: border-box;
  color: #0074D9;
  color: var(--theme-color, #0074D9);
  display: inline-block;
  font-size: 16.8px;
  font-size: 1.05rem;
  letter-spacing: 1.6px;
  letter-spacing: 0.1rem;
  margin-right: 16px;
  margin-right: 1rem;
  padding: 0.75em 32px;
  padding: 0.75em 2rem;
  text-decoration: none;
  transition: all 0.15s ease;
}
section.cover .cover-main > p:last-child a:last-child{
  background-color: #0074D9;
  background-color: var(--theme-color, #0074D9);
  color: #fff;
  margin-right: 0;
}
section.cover .cover-main > p:last-child a:last-child:hover{
  color: inherit;
  opacity: .8;
}
section.cover .cover-main > p:last-child a:hover{
  color: inherit;
}
section.cover blockquote > p > a{
  border-bottom: 2px solid #0074D9;
  border-bottom: 2px solid var(--theme-color, #0074D9);
  transition: color .3s;
}
section.cover blockquote > p > a:hover{
  color: #0074D9;
  color: var(--theme-color, #0074D9);
}
section.cover.show{
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
section.cover.has-mask .mask{
  background-color: #fff;
  opacity: .8;
  position: absolute;
  width: 100%;
  height: 100%;
}

/* sidebar */
.sidebar {
  color: #364149;
  background-color: #fff;
}
.sidebar a {
  color: #666;
  text-decoration: none;
}
.sidebar li {
  list-style: none;
  margin: 0;
  padding: 0.2em 0 0.2em 16px;
  padding: 0.2em 0 0.2em 1rem;
}
.sidebar ul li ul {
  padding: 0;
}
.sidebar li.active {
  background-color: #eee;
}
.sidebar li.active a {
  color: #333;
}

.markdown-section h1, .markdown-section h2, .markdown-section h3, .markdown-section h4, .markdown-section strong {
  color: #333;
  font-weight: 600;
}

.markdown-section a {
  color: #0074D9;
  color: var(--theme-color, #0074D9);
  font-weight: 400;
}

.markdown-section p, .markdown-section ul, .markdown-section ol {
  line-height: 25.6px;
  line-height: 1.6rem;
  margin: 0 0 1em 0;
  word-spacing: 0.8px;
  word-spacing: 0.05rem;
}

.markdown-section h1 {
  font-size: 32px;
  font-size: 2rem;
  font-weight: 500;
  margin: 0 0 16px;
  margin: 0 0 1rem;
}

.markdown-section h2 {
  font-size: 28.8px;
  font-size: 1.8rem;
  font-weight: 400;
  margin: 0 0 16px 0;
  margin: 0 0 1rem 0;
  padding: 16px 0 0 0;
  padding: 1rem 0 0 0;
}

.markdown-section h3 {
  font-size: 24px;
  font-size: 1.5rem;
  margin: 52px 0 19.2px;
  margin: 52px 0 1.2rem;
}

.markdown-section h4 {
  font-size: 20px;
  font-size: 1.25rem;
}

.markdown-section h5 {
  font-size: 16px;
  font-size: 1rem;
}

.markdown-section h6 {
  color: #777;
  font-size: 16px;
  font-size: 1rem;
}

.markdown-section figure, .markdown-section p, .markdown-section ul, .markdown-section ol {
  margin: 1.2em 0;
}

.markdown-section ul, .markdown-section ol {
  padding-left: 24px;
  padding-left: 1.5rem;
}

.markdown-section li {
  line-height: 1.5;
  margin: 0;
}

.markdown-section blockquote {
  border-left: 4px solid #0074D9;
  border-left: 4px solid var(--theme-color, #0074D9);
  color: #858585;
  margin: 2em 0;
  padding-left: 20px;
}

.markdown-section blockquote p {
  font-weight: 600;
  margin-left: 0;
}

.markdown-section iframe {
  margin: 1em 0;
}

.markdown-section em {
  color: #7f8c8d;
}

.markdown-section code {
  background-color: #f9f9f9;
  border-radius: 3px;
  font-family: Inconsolata;
  padding: 0.2em 6.4px;
  padding: 0.2em 0.4rem;
  white-space: pre;
}

.markdown-section pre {
  background-color: #f9f9f9;
  border-left: 2px solid #eee;
  font-family: Inconsolata;
  font-size: 16px;
  margin: 0 0 1em 0;
  padding: 8px;
  padding: 0 10px 12px 0;
  overflow: auto;
  word-wrap: normal;
}

/* code highlight */
.token.cdata, .token.comment, .token.doctype, .token.prolog {
  color: #93a1a1; /* base1 */
}

.token.punctuation {
  color: #586e75; /* base01 */
}

.namespace {
  opacity: .7;
}

.token.property, .token.tag, .token.boolean, .token.number, .token.constant, .token.symbol, .token.deleted {
  color: #268bd2; /* blue */
}

.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin, .token.url, .token.inserted {
  color: #2aa198; /* cyan */
}

.token.entity {
  color: #657b83; /* base00 */
  background: #eee8d5; /* base2 */
}

.token.atrule, .token.attr-value, .token.keyword {
  color: #a11; /* green */
}

.token.function {
  color: #b58900; /* yellow */
}

.token.regex, .token.important, .token.variable {
  color: #cb4b16; /* orange */
}

.token.important, .token.bold {
  font-weight: 700;
}
.token.italic {
  font-style: italic;
}

.token.entity {
  cursor: help;
}

.markdown-section pre>code {
  background-color: #f8f8f8;
  border-radius: 2px;
  display: block;
  font-family: Inconsolata;
  line-height: 17.6px;
  line-height: 1.1rem;
  max-width: inherit;
  overflow: inherit;
  padding: 20px 0.8em 20px;
  position: relative;
}

.markdown-section code::after, .markdown-section code::before {
  letter-spacing: 0.8px;
  letter-spacing: 0.05rem;
}

code .token {
  -webkit-font-smoothing: initial;
  -moz-osx-font-smoothing: initial;
  min-height: 24px;
  min-height: 1.5rem;
}