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public/font-awesome/less/_mixins.less 1.23 KB
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  // Mixins
  // --------------------------
  
  .fa-icon() {
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    font-weight: normal;
    line-height: 1;
    vertical-align: -.125em;
  }
  
  .fa-icon-rotate(@degrees, @rotation) {
    -ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=@{rotation})";
    transform: rotate(@degrees);
  }
  
  .fa-icon-flip(@horiz, @vert, @rotation) {
    -ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=@{rotation}, mirror=1)";
    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() {
    border: 0;
    clip: rect(0,0,0,0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
  }
  
  // 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 {
      clip: auto;
      height: auto;
      margin: 0;
      overflow: visible;
      position: static;
      width: auto;
    }
  }