devdocs/assets/stylesheets/pages/_phaser.scss

._phaser {
  h2 { @extend %block-heading; }
  h4 { @extend %block-label, %label-blue; }

  p > code, li > code, td > code { @extend %label; }

  dt.tag-source {
    color: #666;
    font-weight: normal;
  }

  .deprecated-notice {
    @extend %note;
  }

  #docs-index > h3 { @extend %block-label, %label-blue; }
  #docs > h3 { @extend %block-heading; }
  #docs > h4 { @extend %block-label, %label-blue; }

  #docs header {
    display: none;
  }
}