docsify/src/themes/basic/_layout.css

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

.emoji {
  height: 1.2em;
  vertical-align: middle;
}

.progress {
  background-color: var(--theme-color, $color-primary);
  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: var(--theme-color, $color-primary);
}

.search .search-keyword {
  color: var(--theme-color, $color-primary);
  font-style: normal;
}

html, body {
  height: 100%;
}

body {
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  font-family: 'Source Sans Pro', 'Helvetica Neue', Arial, sans-serif;
  font-size: 15px;
  letter-spacing: 0;
  margin: 0;
  overflow-x: hidden;
  color: $color-text;
}

img {
  max-width: 100%;
}

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

/* navbar */
nav {
  position: absolute;
  right: 0;
  left: 0;
  z-index: 10;
  margin: 25px 60px 0 0;
  text-align: right;

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

  p {
    margin: 0;
  }

  >a {
    margin: 0 1em;
    padding: 5px 0;
  }

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

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

    &:hover {
      color: var(--theme-color, $color-primary);
    }

    &.active {
      color: var(--theme-color, $color-primary);
      border-bottom: 2px solid var(--theme-color, $color-primary);
    }
  }

  /* navbar dropdown */
  li {
    position: relative;
    display: inline-block;
    margin: 0 1em;
    padding: 5px 0;

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

      li {
        display: block;
        font-size: 14px;
        margin: 0;
        margin: 8px 14px;
        white-space: nowrap;
        line-height: 1em;
      }

      a {
        display: block;
        font-size: inherit;
        margin: 0;
        padding: 0;

        &.active {
          border-bottom: 0;
        }
      }
    }

    &:hover ul {
      display: block;
    }
  }
}

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

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

  svg {
    color: $color-bg;
    height: 80px;
    width: 80px;
    fill: var(--theme-color, $color-primary);
  }
}

/* main */
main {
  display: block;
  size: 100vw 100%;
  position: relative;
}

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

  span {
    color: $color-text;
  }

  &:hover {
    text-decoration: underline;
  }
}

/* sidebar */
.sidebar {
  overflow-y: auto;
  padding: 40px 0;
  position: absolute 0 * 0 0;
  transition: transform 250ms ease-out;
  width: $sidebar-width;
  z-index: 20;
  border-right: 1px solid rgba(0, 0, 0, .07);

  > h1 {
    text-align: center;
    margin: 0 auto 1em;
    font-size: 1.5em;
    font-weight: 300;

    a {
      color: inherit;
      text-decoration: none;
    }
  }

  ul {
    margin: 0;
    padding: 0;
  }

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

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

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

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

  &::-webkit-scrollbar {
    width: 4px;
  }

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

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

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

/* sidebar toggle */
.sidebar-toggle {
  background-color: transparent;
  border: 0;
  outline: none;
  position: absolute * * 0 0;
  text-align: center;
  transition: opacity .3s;
  width: 30px;
  z-index: 30;
  outline: none;
  width: calc($sidebar-width - 16px);
  padding: 10px;
  background-color: rgba($color-bg, .8);

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

  span {
    background-color: var(--theme-color, $color-primary);
    display: block;
    size: 16px 2px;
    margin-bottom: 4px;
  }
}

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

/* main content */
.content {
  position: absolute 0 0 0 $sidebar-width;
  padding-top: 20px;
  transition: left 250ms ease;
}

/* markdown content found on pages */
.markdown-section {
  position: relative;
  margin: 0 auto;
  max-width: 800px;
  padding: 20px 15px 40px 15px;

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

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

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

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

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

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

.markdown-section tr {
  border-top: 1px solid #ccc;
  &:nth-child(2n) {
    background-color: #f8f8f8;
  }
}

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

  &:before {
    position: absolute;
    top: 14px;
    left: -12px;
    background-color: #f66;
    color: $color-bg;
    content: "!";
    size: 20px;
    border-radius: 100%;
    text-align: center;
    line-height: 20px;
    font-weight: bold;
    font-family: 'Dosis', 'Source Sans Pro', 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
  }

  code {
    background-color: #efefef;
  }

  em {
    color: $color-text;
  }
}

.markdown-section p.warn {
  padding: 1em;
  background: rgba($color-primary, 0.1);
  border-radius: 2px;
}

body.close {
  .sidebar {
    transform: translateX(-$sidebar-width);
  }

  .sidebar-toggle {
    width: auto;
  }

  .content {
    left: 0;
  }
}

@media (max-width: 600px) {
  .github-corner, .sidebar-toggle, .sidebar {
    position: fixed;
  }

  nav {
    margin-top: 16px;
  }

  nav li ul {
    top: 30px;
  }

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

  .sidebar {
    left: -$sidebar-width;
    transition: transform 250ms ease-out;
  }

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

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

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

  body.close {
    .sidebar {
      transform: translateX($sidebar-width);
    }

    .sidebar-toggle {
      width: calc($sidebar-width - 16px);
      background-color: rgba($color-bg, .8);
      transition: 1s background-color;
    }

    .content {
      transform: translateX($sidebar-width);
    }

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

  .github-corner {
    &:hover .octo-arm {
      animation: none;
    }
    .octo-arm {
      animation: octocat-wave 560ms ease-in-out;
    }
  }
}

@keyframes octocat-wave {
  0%,100% { transform: rotate(0); }
  20%,60% { transform: rotate(-25deg); }
  40%,80% { transform: rotate(10deg); }
}