devdocs/assets/stylesheets/pages/_haproxy.scss

._haproxy {
  padding-left: 1rem;

  h1, h2, h3 { margin-left: -1rem; }
  h2 { @extend %block-heading; }
  h3 { @extend %block-label; }
  h4 { @extend %block-label; }

  ._mobile & {
    padding-left: 0;

    h1, h2, h3 { margin-left: 0; }
  }

  .pagination-centered { text-align: center; }

  .pull-right { float: right !important; }

  .keyword { @extend %block-label, %label-blue;}

  pre.text {
    background: var(--contentBackground);
    border-width: 0px;
  }

  td.alert-success { background: var(--noteGreenBackground); }
  td.alert-error { background: var(--noteRedBackground); }
}