h1, h2, h3, h4, h5, h6 {
  .icon-link {
    color: $darkgray;
    vertical-align: middle;
    visibility: hidden;
    margin: 8px;

    font: normal normal 24px 'Material Icons';
    display: inline-block;
    line-height: 1;
    text-transform: none;
    letter-spacing: normal;
    word-wrap: normal;
    white-space: nowrap;
    direction: ltr;

    /* Support for all WebKit browsers. */
    -webkit-font-smoothing: antialiased;
    /* Support for Safari and Chrome. */
    text-rendering: optimizeLegibility;

    /* Support for Firefox. */
    -moz-osx-font-smoothing: grayscale;

    /* Support for IE. */
    font-feature-settings: 'liga';

    &:before { content: 'link'; }
  }

  a {
    text-decoration: none;
    padding-left: 8px;
    margin-left: -50px;
    display: inline-block;
    vertical-align: middle;
  }

  &:hover .icon-link {
    visibility: visible
  }
}