app/static/less/mixins.less

   1 // Mixins
   2 // --------------------------
   3
   4 .fa-icon() {
   5   display: inline-block;
   6   font: normal normal normal @fa-font-size-base/@fa-line-height-base FontAwesome; // shortening font declaration
   7   font-size: inherit; // can't have font-size inherit on line above, so need to override
   8   text-rendering: auto; // optimizelegibility throws things off #1094
   9   -webkit-font-smoothing: antialiased;
  10   -moz-osx-font-smoothing: grayscale;
  11
  12 }
  13
  14 .fa-icon-rotate(@degrees, @rotation) {
  15   -ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=@{rotation})";
  16   -webkit-transform: rotate(@degrees);
  17       -ms-transform: rotate(@degrees);
  18           transform: rotate(@degrees);
  19 }
  20
  21 .fa-icon-flip(@horiz, @vert, @rotation) {
  22   -ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=@{rotation}, mirror=1)";
  23   -webkit-transform: scale(@horiz, @vert);
  24       -ms-transform: scale(@horiz, @vert);
  25           transform: scale(@horiz, @vert);
  26 }
  27
  28
  29 // Only display content to screen readers. A la Bootstrap 4.
  30 //
  31 // See: http://a11yproject.com/posts/how-to-hide-content/
  32
  33 .sr-only() {
  34   position: absolute;
  35   width: 1px;
  36   height: 1px;
  37   padding: 0;
  38   margin: -1px;
  39   overflow: hidden;
  40   clip: rect(0,0,0,0);
  41   border: 0;
  42 }
  43
  44 // Use in conjunction with .sr-only to only display content when it's focused.
  45 //
  46 // Useful for "Skip to main content" links; see http://www.w3.org/TR/2013/NOTE-WCAG20-TECHS-20130905/G1
  47 //
  48 // Credit: HTML5 Boilerplate
  49
  50 .sr-only-focusable() {
  51   &:active,
  52   &:focus {
  53     position: static;
  54     width: auto;
  55     height: auto;
  56     margin: 0;
  57     overflow: visible;
  58     clip: auto;
  59   }
  60 }