// 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;

  }

}