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@mixin all-retina-sprites($map, $map2x) {
@media (min--moz-device-pixel-ratio: 1.5),
(-o-min-device-pixel-ratio: 3/2),
(-webkit-min-device-pixel-ratio: 1.5),
(min-device-pixel-ratio: 1.5),
(min-resolution: 1.5dppx) {
$base-class: sprite-map-name($map);
.#{$base-class}-all-retina-sprites {
background-image: sprite-url($map2x);
@include background-size(ceil(image-width(sprite-path($map2x)) / 2) auto);
@each $sprite in sprite-names($map) {
.#{$base-class}-#{$sprite} {
@extend .#{$base-class}-all-retina-sprites;
$position: sprite-position($map2x, $sprite);
background-position: nth($position, 1) nth($position, 2) / 2;
// Sprite set: General
// ----------------------------------------
//$general-layout: smart;
$general-spacing: 1px;
$general-sprite-dimensions: true;
@import "general/*.png";
@include all-general-sprites;
$general-retina-spacing: 1px;
$general-retina-sprite-dimensions: true;
@import "general-retina/*.png";
//@include all-general-retina-sprites;
@include all-retina-sprites($general-sprites, $general-retina-sprites);
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