devdocs/assets/stylesheets/pages/_graphite.scss

._graphite {
  @extend %simple;

  h1 {
    @extend %lined-heading;
  }

  .section:first-child h1 {
    margin-top: 0;
  }

  dl > dt {
    @extend %note, %note-blue;
    padding: 1px 0.5rem 2px 0.5rem;
    font-weight: bold;
  }

  dl.function > dt {
    code {
      font-weight: bold;
    }
    em {
      font-style: normal;
    }
  }
}