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//
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// @file
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// Accessibility features.
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//
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// As defined by http://snook.ca/archives/html_and_css/hiding-content-for-accessibility
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@mixin visually-hidden {
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position: absolute !important;
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height: 1px;
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width: 1px;
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overflow: hidden;
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@if $legacy-support-for-ie6 or $legacy-support-for-ie7 {
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clip: rect(1px 1px 1px 1px); // IE6 and IE7 use the wrong syntax.
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}
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clip: rect(1px, 1px, 1px, 1px);
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}
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// Turns off the visually-hidden effect.
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@mixin visually-hidden-off {
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position: static !important;
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clip: auto;
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height: auto;
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width: auto;
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overflow: auto;
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}
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// Makes an element visually hidden, except when it receives focus.
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@mixin visually-focusable {
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@include visually-hidden();
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&:active,
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&:focus {
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@include visually-hidden-off();
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}
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}
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// Placeholder styles for use with @extend.
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%visually-hidden {
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@include visually-hidden();
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}
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%visually-hidden-off {
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@include visually-hidden-off();
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}
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%visually-focusable {
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@extend %visually-hidden;
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&:active,
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&:focus {
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@extend %visually-hidden-off;
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}
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}
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