text: // Mixins
  // --------------------------
  
  .fa-icon() {
    display: inline-block;
    font: normal normal normal @fa-font-size-base/@fa-line-height-base FontAwesome; // shortening font declaration
    font-size: inherit; // can't have font-size inherit on line above, so need to override
    text-rendering: auto; // optimizelegibility throws things off #1094
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  
  }
  
  .fa-icon-rotate(@degrees, @rotation) {
    -ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=@{rotation})";
    -webkit-transform: rotate(@degrees);
        -ms-transform: rotate(@degrees);
            transform: rotate(@degrees);
  }
  
  .fa-icon-flip(@horiz, @vert, @rotation) {
    -ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=@{rotation}, mirror=1)";
    -webkit-transform: scale(@horiz, @vert);
        -ms-transform: scale(@horiz, @vert);
            transform: scale(@horiz, @vert);
  }
  
  
  // Only display content to screen readers. A la Bootstrap 4.
  //
  // See: http://a11yproject.com/posts/how-to-hide-content/
  
  .sr-only() {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
  }
  
  // Use in conjunction with .sr-only to only display content when it's focused.
  //
  // Useful for "Skip to main content" links; see http://www.w3.org/TR/2013/NOTE-WCAG20-TECHS-20130905/G1
  //
  // Credit: HTML5 Boilerplate
  
  .sr-only-focusable() {
    &:active,
    &:focus {
      position: static;
      width: auto;
      height: auto;
      margin: 0;
      overflow: visible;
      clip: auto;
    }
  }
  