mdBook/src/theme/book.css

html,
body {
  font-family: "Open Sans", sans-serif;
  color: #333;
}
.left {
  float: left;
}
.right {
  float: right;
}
.hidden {
  display: none;
}
h2,
h3 {
  margin-top: 2.5em;
}
h4,
h5 {
  margin-top: 2em;
}
.header + .header h3,
.header + .header h4,
.header + .header h5 {
  margin-top: 1em;
}
.sidebar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 300px;
  overflow-y: auto;
  padding: 10px 10px;
  font-size: 0.875em;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-overflow-scrolling: touch;
  -webkit-transition: left 0.5s;
  -moz-transition: left 0.5s;
  -o-transition: left 0.5s;
  -ms-transition: left 0.5s;
  transition: left 0.5s;
}
@media only screen and (max-width: 1060px) {
  .sidebar {
    left: -300px;
  }
}
.sidebar code {
  line-height: 2em;
}
.sidebar-hidden .sidebar {
  left: -300px;
}
.sidebar-visible .sidebar {
  left: 0;
}
.chapter {
  list-style: none outside none;
  padding-left: 0;
  line-height: 1.9em;
}
.chapter li a {
  padding: 5px 0;
  text-decoration: none;
}
.chapter li a:hover {
  text-decoration: none;
}
.chapter .spacer {
  width: 100%;
  height: 3px;
  margin: 10px 0px;
}
.section {
  list-style: none outside none;
  padding-left: 20px;
  line-height: 2.5em;
}
.section li {
  -o-text-overflow: ellipsis;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}
.page-wrapper {
  position: absolute;
  overflow-y: auto;
  left: 315px;
  right: 0;
  top: 0;
  bottom: 0;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-overflow-scrolling: touch;
  min-height: 100%;
  -webkit-transition: left 0.5s;
  -moz-transition: left 0.5s;
  -o-transition: left 0.5s;
  -ms-transition: left 0.5s;
  transition: left 0.5s;
}
@media only screen and (max-width: 1060px) {
  .page-wrapper {
    left: 15px;
    padding-right: 15px;
  }
}
.sidebar-hidden .page-wrapper {
  left: 15px;
}
.sidebar-visible .page-wrapper {
  left: 315px;
}
.page {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  padding-right: 15px;
  overflow-y: auto;
}
.content {
  margin-left: auto;
  margin-right: auto;
  max-width: 750px;
  padding-bottom: 50px;
}
.content a {
  text-decoration: none;
}
.content a:hover {
  text-decoration: underline;
}
.content img {
  max-width: 100%;
}
.menu-bar {
  position: relative;
  height: 50px;
}
.menu-bar i {
  position: relative;
  margin: 0 10px;
  z-index: 10;
  line-height: 50px;
  -webkit-transition: color 0.5s;
  -moz-transition: color 0.5s;
  -o-transition: color 0.5s;
  -ms-transition: color 0.5s;
  transition: color 0.5s;
}
.menu-bar i:hover {
  cursor: pointer;
}
.menu-bar .left-buttons {
  float: left;
}
.menu-bar .right-buttons {
  float: right;
}
.menu-title {
  display: inline-block;
  font-weight: 200;
  font-size: 20px;
  line-height: 50px;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  text-align: center;
  margin: 0;
  opacity: 0;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";
  filter: alpha(opacity=0);
  -webkit-transition: opacity 0.5s ease-in-out;
  -moz-transition: opacity 0.5s ease-in-out;
  -o-transition: opacity 0.5s ease-in-out;
  -ms-transition: opacity 0.5s ease-in-out;
  transition: opacity 0.5s ease-in-out;
}
.menu-bar:hover .menu-title {
  opacity: 1;
  -ms-filter: none;
  filter: none;
}
.nav-chapters {
  font-size: 2.5em;
  text-align: center;
  text-decoration: none;
  position: absolute;
  top: 50px /* Height of menu-bar */;
  bottom: 0;
  margin: 0;
  max-width: 150px;
  min-width: 90px;
  display: -webkit-box;
  display: -moz-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: box;
  display: flex;
  -webkit-box-pack: center;
  -moz-box-pack: center;
  -o-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -ms-flex-line-pack: center;
  -webkit-align-content: center;
  align-content: center;
  -webkit-box-orient: vertical;
  -moz-box-orient: vertical;
  -o-box-orient: vertical;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-transition: color 0.5s;
  -moz-transition: color 0.5s;
  -o-transition: color 0.5s;
  -ms-transition: color 0.5s;
  transition: color 0.5s;
}
.mobile-nav-chapters {
  display: none;
}
.nav-chapters:hover {
  text-decoration: none;
}
.previous {
  left: 0;
}
.next {
  right: 15px;
}
.theme-popup {
  position: fixed;
  left: -40px;
  -webkit-border-radius: 4px;
  border-radius: 4px;
  font-size: 0.7em;
}
.theme-popup .theme {
  margin: 0;
  padding: 2px 10px;
  line-height: 25px;
  white-space: nowrap;
}
@media only screen and (max-width: 1250px) {
  .nav-chapters {
    display: none;
  }
  .mobile-nav-chapters {
    font-size: 2.5em;
    text-align: center;
    text-decoration: none;
    max-width: 150px;
    min-width: 90px;
    -webkit-box-pack: center;
    -moz-box-pack: center;
    -o-box-pack: center;
    -ms-flex-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    -ms-flex-line-pack: center;
    -webkit-align-content: center;
    align-content: center;
    position: relative;
    display: inline-block;
    margin-bottom: 50px;
    -webkit-border-radius: 5px;
    border-radius: 5px;
  }
  .next {
    float: right;
  }
  .previous {
    float: left;
  }
}
.light {
/* Inline code */
  color: #333;
  background-color: #fff;
}
.light :not(pre) > .hljs {
  display: inline-block;
  vertical-align: middle;
  padding: 0.1em 0.3em;
  -webkit-border-radius: 3px;
  border-radius: 3px;
}
.light pre {
  position: relative;
}
.light pre > i {
  position: absolute;
  right: 5px;
  top: 5px;
  color: #364149;
  cursor: pointer;
}
.light pre > i :hover {
  color: #008cff;
}
.light .sidebar {
  background-color: #fafafa;
  color: #364149;
}
.light .chapter li {
  color: #aaa;
}
.light .chapter li a {
  color: #364149;
}
.light .chapter li .active,
.light .chapter li a:hover {
/* Animate color change */
  color: #008cff;
}
.light .chapter .spacer {
  background-color: #f4f4f4;
}
.light .menu-bar,
.light .menu-bar:visited,
.light .nav-chapters,
.light .nav-chapters:visited,
.light .mobile-nav-chapters,
.light .mobile-nav-chapters:visited {
  color: #ccc;
}
.light .menu-bar i:hover,
.light .nav-chapters:hover,
.light .mobile-nav-chapters i:hover {
  color: #333;
}
.light .mobile-nav-chapters i:hover {
  color: #364149;
}
.light .mobile-nav-chapters {
  background-color: #fafafa;
}
.light .content a:link,
.light a:visited {
  color: #4183c4;
}
.light .theme-popup {
  background: #fafafa;
  border: 1px solid #ccc;
}
.light .theme-popup .theme:hover {
  background-color: #e6e6e6;
}
.coal {
/* Inline code */
  color: #98a3ad;
  background-color: #141617;
}
.coal :not(pre) > .hljs {
  display: inline-block;
  vertical-align: middle;
  padding: 0.1em 0.3em;
  -webkit-border-radius: 3px;
  border-radius: 3px;
}
.coal pre {
  position: relative;
}
.coal pre > i {
  position: absolute;
  right: 5px;
  top: 5px;
  color: #a1adb8;
  cursor: pointer;
}
.coal pre > i :hover {
  color: #3473ad;
}
.coal .sidebar {
  background-color: #292c2f;
  color: #a1adb8;
}
.coal .chapter li {
  color: #505254;
}
.coal .chapter li a {
  color: #a1adb8;
}
.coal .chapter li .active,
.coal .chapter li a:hover {
/* Animate color change */
  color: #3473ad;
}
.coal .chapter .spacer {
  background-color: #393939;
}
.coal .menu-bar,
.coal .menu-bar:visited,
.coal .nav-chapters,
.coal .nav-chapters:visited,
.coal .mobile-nav-chapters,
.coal .mobile-nav-chapters:visited {
  color: #43484d;
}
.coal .menu-bar i:hover,
.coal .nav-chapters:hover,
.coal .mobile-nav-chapters i:hover {
  color: #b3c0cc;
}
.coal .mobile-nav-chapters i:hover {
  color: #a1adb8;
}
.coal .mobile-nav-chapters {
  background-color: #292c2f;
}
.coal .content a:link,
.coal a:visited {
  color: #2b79a2;
}
.coal .theme-popup {
  background: #141617;
  border: 1px solid #43484d;
}
.coal .theme-popup .theme:hover {
  background-color: #1f2124;
}
.navy {
/* Inline code */
  color: #bcbdd0;
  background-color: #161923;
}
.navy :not(pre) > .hljs {
  display: inline-block;
  vertical-align: middle;
  padding: 0.1em 0.3em;
  -webkit-border-radius: 3px;
  border-radius: 3px;
}
.navy pre {
  position: relative;
}
.navy pre > i {
  position: absolute;
  right: 5px;
  top: 5px;
  color: #c8c9db;
  cursor: pointer;
}
.navy pre > i :hover {
  color: #2b79a2;
}
.navy .sidebar {
  background-color: #282d3f;
  color: #c8c9db;
}
.navy .chapter li {
  color: #505274;
}
.navy .chapter li a {
  color: #c8c9db;
}
.navy .chapter li .active,
.navy .chapter li a:hover {
/* Animate color change */
  color: #2b79a2;
}
.navy .chapter .spacer {
  background-color: #2d334f;
}
.navy .menu-bar,
.navy .menu-bar:visited,
.navy .nav-chapters,
.navy .nav-chapters:visited,
.navy .mobile-nav-chapters,
.navy .mobile-nav-chapters:visited {
  color: #737480;
}
.navy .menu-bar i:hover,
.navy .nav-chapters:hover,
.navy .mobile-nav-chapters i:hover {
  color: #b7b9cc;
}
.navy .mobile-nav-chapters i:hover {
  color: #c8c9db;
}
.navy .mobile-nav-chapters {
  background-color: #282d3f;
}
.navy .content a:link,
.navy a:visited {
  color: #2b79a2;
}
.navy .theme-popup {
  background: #161923;
  border: 1px solid #737480;
}
.navy .theme-popup .theme:hover {
  background-color: #282e40;
}
.rust {
/* Inline code */
  color: #262625;
  background-color: #e1e1db;
}
.rust :not(pre) > .hljs {
  display: inline-block;
  vertical-align: middle;
  padding: 0.1em 0.3em;
  -webkit-border-radius: 3px;
  border-radius: 3px;
}
.rust pre {
  position: relative;
}
.rust pre > i {
  position: absolute;
  right: 5px;
  top: 5px;
  color: #c8c9db;
  cursor: pointer;
}
.rust pre > i :hover {
  color: #e69f67;
}
.rust .sidebar {
  background-color: #3b2e2a;
  color: #c8c9db;
}
.rust .chapter li {
  color: #505254;
}
.rust .chapter li a {
  color: #c8c9db;
}
.rust .chapter li .active,
.rust .chapter li a:hover {
/* Animate color change */
  color: #e69f67;
}
.rust .chapter .spacer {
  background-color: #45373a;
}
.rust .menu-bar,
.rust .menu-bar:visited,
.rust .nav-chapters,
.rust .nav-chapters:visited,
.rust .mobile-nav-chapters,
.rust .mobile-nav-chapters:visited {
  color: #737480;
}
.rust .menu-bar i:hover,
.rust .nav-chapters:hover,
.rust .mobile-nav-chapters i:hover {
  color: #262625;
}
.rust .mobile-nav-chapters i:hover {
  color: #c8c9db;
}
.rust .mobile-nav-chapters {
  background-color: #3b2e2a;
}
.rust .content a:link,
.rust a:visited {
  color: #2b79a2;
}
.rust .theme-popup {
  background: #e1e1db;
  border: 1px solid #b38f6b;
}
.rust .theme-popup .theme:hover {
  background-color: #99908a;
}