devdocs/assets/stylesheets/pages/_angular.scss

._angular {
  padding-left: 1rem;

  h1, h2, > h3, .banner, .badges, .breadcrumbs { margin-left: -1rem; }

  ._mobile & {
    padding-left: 0;

    h1, h2, > h3, .banner, .badges, .breadcrumbs { margin-left: 0; }
  }

  h2 { @extend %block-heading; }
  > h3 { @extend %block-label, %label-blue; }
  .code-example > h4, .pre-title { @extend %pre-heading; }

  p > code, dd > code, .status-badge { @extend %label; }

  .l-sub-section, .alert, .banner, .breadcrumbs { @extend %note; }
  .banner { @extend %note-green; }
  .alert.is-important { @extend %note-red; }
  .alert.is-helpful, .breadcrumbs { @extend %note-blue; }
  .breadcrumbs { padding-left: 2em; }

  td > h3, .l-sub-section > h3, .l-sub-section > h4, .alert > h3, .alert > h4, .row-margin > h3 {
    margin-top: .25rem;
    font-size: 1em;
  }

  img {
    display: block;
    margin: 1em auto;

    &[align="left"] {
      float: left;
      margin: 0 1em 0 0;
    }

    &[align="right"] {
      float: right;
      margin: 0 0 0 1em;
    }
  }

  .location-badge {
    text-align: right;
    font-style: italic;
  }

  .filetree {
    white-space: normal;
    @extend %pre;

    .children { padding-left: 1em; }
  }
}