devdocs/assets/stylesheets/components/_content.scss

//
// Content
//

._container {
  position: relative;
  z-index: $contentZ;
  height: 100%;
  margin-left: $sidebarWidth;
  pointer-events: none;
  @extend %border-box;

  @media #{$mediumScreen} { margin-left: $sidebarMediumWidth; }
}

._content {
  position: relative;
  height: 100%;
  overflow-y: scroll;
  margin-left: .875rem;
  padding: 1.25rem 1.5rem 0;
  font-size: .875rem;
  pointer-events: auto;
  -webkit-overflow-scrolling: touch;
  @extend %border-box;

  -webkit-padding-start: .75rem;
  -webkit-padding-end: 1rem;

  @media (-moz-overlay-scrollbars) { padding-left: .75rem; }
  @media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) { margin-left: 0; }

  &:after { // padding bottom
    content: '';
    display: block;
    margin-bottom: 1.25rem;
  }

  &::-webkit-scrollbar { -webkit-appearance: none; }
  &::-webkit-scrollbar:vertical { width: 14px; }
  &::-webkit-scrollbar:horizontal { height: 14px }
  &::-webkit-scrollbar-button { display: none; }
  &::-webkit-scrollbar-track { background: $contentBackground; }
  &::-webkit-scrollbar-thumb {
    min-height: 2rem;
    background: $scrollbarColor;
    background-clip: padding-box;
    border: 5px solid $contentBackground;
    border-radius: 10px;

    &:active {
      background-color: $scrollbarColorHover;
      border-width: 4px;
    }
  }
}

._content-loading:before {
  opacity: 1;
  @extend ._booting:before;
}

//
// Splash screen
//

._splash-title {
  color: $splashText;
  cursor: default;
  opacity: 1;
  @extend ._booting:before, %user-select-none;
}

._splash-sponsor {
  position: absolute;
  display: block;
  bottom: 1.25rem;
  right: 1rem;

  ._logo-thx { opacity: .25; }
  &:hover ._logo-thx { opacity: .5; }

  & + & {
    left: 1rem;
    right: auto;

    ._logo-info {
      right: auto;
      left: 0;
    }
  }
}

//
// Intro
//

._intro { text-align: center; }

._intro-message {
  position: relative;
  display: inline-block;
  vertical-align: top;
  max-width: 37rem;
  padding: 1rem 1.25rem;
  text-align: left;
  @extend %note, %note-green;
}

._intro-hide {
  float: right;
  line-height: 1.5rem;
  cursor: pointer;
}

._intro-title {
  margin: 0 0 1rem;
  font-size: 1rem;
  line-height: 1.5rem;
}

._intro-list {
  margin: 1rem 0;
  padding-left: 2.25rem;
}

._intro-link { cursor: pointer; }

._intro-sponsors {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  margin: 0;
  line-height: 1.5rem;
}

._intro-sponsor {
  display: inline-block;
  vertical-align: top;
  margin-left: .5em;

  &:hover { text-decoration: none; }
}

//
// Error
//

._error {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  padding: 0 2rem;
  line-height: 1.5rem;
  text-align: center;
}

._error-title {
  margin: -5.5rem 0 .5rem;
  line-height: 2;
  font-size: 1.5rem;
}

._error-text {
  margin: 0 0 1rem;
  color: $textColorLight;
}

._error-links {
  font-size: 1rem;
  font-weight: bold;
}

._error-link { padding: 0 .5rem; }

//
// Heading
//

._lined-heading,
%lined-heading {
  white-space: nowrap;
  overflow: hidden;
  word-wrap: normal;
  overflow-wrap: normal;

  &:after {
    content: '';
    display: inline-block;
    vertical-align: middle;
    width: 100%;
    height: 1px;
    line-height: 0;
    margin-left: 1rem;
    background: $boxBorderLight;
  }
}

//
// Table of contents
//

._toc {
  float: right;
  max-width: 15em;
  margin: .25rem 0 1.5rem 1.5rem;
  padding: .75rem 1rem;
  @extend %box;

  + ._lined-heading { margin-top: 0; }
}

._toc-title {
  margin: 0 0 .75em;
  font-size: inherit;
}

._toc-list {
  margin: 0;
  padding: 0 1em 0 0;
  list-style: none;
}

//
// Static page
//

._static {
  padding-bottom: 2em;

  > ._lined-heading:first-child { margin-top: 0; }
}

//
// Credits table
//

._credits {
  width: 100%;

  td:first-child, td:last-child { white-space: nowrap; }
}

//
// News
//

._content {
  ._news-row {
    position: relative;
    padding-left: 10em;
    font-size: .8125rem;
    color: $textColorLight;

    + ._news-row { margin-top: 1em; }
  }

  ._news-title {
    display: block;
    font-size: .875rem;
    color: $textColor;
  }

  ._news-date {
    position: absolute;
    top: 0;
    left: 0;
    font-size: .875rem;
  }
}

//
// Keyboard shortcuts
//

._shortcuts-title {
  width: 16rem;
  max-width: 40%;
  margin: 2rem 0 1rem;
  font-size: 1rem;
  text-align: right;
}

._shortcuts-dl { margin: 1rem 0; }

._shortcuts-dt {
  float: left;
  clear: left;
  margin: 0;
  width: 16rem;
  max-width: 40%;
  font-weight: normal;
  text-align: right;
}

._shortcuts-dd {
  display: block;
  margin: 0 0 .75rem;
  padding: 1px 0 1px .75rem;
  overflow: hidden;
}

._shortcut-code {
  display: inline-block;
  vertical-align: top;
  padding: 0 .5em;
  @extend %label;
}

//
// Utilities
//

._note { @extend %note; }
._note-green { @extend %note-green; }
._label { @extend %label; }
._highlight { background: $highlightBackground !important; }

._github-btn {
  display: inline-block;
  vertical-align: text-top;
  margin-left: .25rem;
}

._logo-thx {
  position: relative;
  display: inline-block;
  vertical-align: top;
  height: 1.5rem;
  overflow: hidden;
  text-indent: -20rem;
  background-position: center center;
  background-repeat: no-repeat;
}

._logo-info {
  top: auto;
  bottom: 100%;
  right: 0;
  max-width: 18.25rem;
  margin-bottom: .75rem;
  padding: .5rem .75rem;
  line-height: 1.375rem;
  pointer-events: none;
  @extend %notif;

  :hover > & { opacity: 1; }
}

._maxcdn-logo {
  width: 6.25rem;
  background-image: image-url('maxcdn.png');
  background-size: 6.25rem 1rem;

  @media (-webkit-min-device-pixel-ratio: 1.5), (min-resolution: 144dpi) {
    background-image: image-url('maxcdn@2x.png');
  }
}

._splash-sponsor > ._maxcdn-logo {
  background-image: image-url('maxcdn-bw.png');

  @media (-webkit-min-device-pixel-ratio: 1.5), (min-resolution: 144dpi) {
    background-image: image-url('maxcdn-bw@2x.png');
  }
}

._shopify-logo {
  width: 5.5rem;
  background-image: image-url('shopify.png');
  background-size: 5.5rem 1.5rem;

  @media (-webkit-min-device-pixel-ratio: 1.5), (min-resolution: 144dpi) {
    background-image: image-url('shopify@2x.png');
  }
}

._splash-sponsor > ._shopify-logo {
  background-image: image-url('shopify-bw.png');

  @media (-webkit-min-device-pixel-ratio: 1.5), (min-resolution: 144dpi) {
    background-image: image-url('shopify-bw@2x.png');
  }
}