// 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