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