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1 efrain 1
// mixins
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// --------------------------
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// base rendering for an icon
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@mixin fa-icon {
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  -webkit-font-smoothing: antialiased;
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  -moz-osx-font-smoothing: grayscale;
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  display: inline-block;
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  font-style: normal;
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  font-variant: normal;
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  font-weight: normal;
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  line-height: 1;
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}
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// sets relative font-sizing and alignment (in _sizing)
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@mixin fa-size ($font-size) {
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  font-size: fa-divide($font-size, $fa-size-scale-base) * 1em; // converts step in sizing scale into an em-based value that's relative to the scale's base
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  line-height: fa-divide(1, $font-size) * 1em; // sets the line-height of the icon back to that of it's parent
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  vertical-align: (fa-divide(6, $font-size) - fa-divide(3, 8)) * 1em; // vertically centers the icon taking into account the surrounding text's descender
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}
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// only display content to screen readers
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// see: https://www.a11yproject.com/posts/2013-01-11-how-to-hide-content/
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// see: https://hugogiraudel.com/2016/10/13/css-hide-and-seek/
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@mixin fa-sr-only() {
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  position: absolute;
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  width: 1px;
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  height: 1px;
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  padding: 0;
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  margin: -1px;
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  overflow: hidden;
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  clip: rect(0, 0, 0, 0);
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  white-space: nowrap;
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  border-width: 0;
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}
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// use in conjunction with .sr-only to only display content when it's focused
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@mixin fa-sr-only-focusable() {
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  &:not(:focus) {
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    @include fa-sr-only();
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  }
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}
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// sets a specific icon family to use alongside style + icon mixins
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@mixin fa-family-classic() {
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  @extend .fa-classic;
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}
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// convenience mixins for declaring pseudo-elements by CSS variable,
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// including all style-specific font properties
1 efrain 51
@mixin fa-icon-solid($fa-var) {
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  @extend .fa-solid;
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  & { #{$fa-icon-property}: unquote("\"#{ $fa-var }\""); #{$fa-duotone-icon-property}: unquote("\"#{ $fa-var }#{ $fa-var }\""); }
1 efrain 55
}
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@mixin fa-icon-regular($fa-var) {
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  @extend .fa-regular;
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  & { #{$fa-icon-property}: unquote("\"#{ $fa-var }\""); #{$fa-duotone-icon-property}: unquote("\"#{ $fa-var }#{ $fa-var }\""); }
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}
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@mixin fa-icon-brands($fa-var) {
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  @extend .fa-brands;
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  & { #{$fa-icon-property}: unquote("\"#{ $fa-var }\""); #{$fa-duotone-icon-property}: unquote("\"#{ $fa-var }#{ $fa-var }\""); }
1 efrain 65
}