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Created April 26, 2013 20:49
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Example Sass mixin for a "bulletproof" Hi-DPI media query
@mixin retina($ratio: 1.5) {
$dpi: $ratio * 96;
$opera-ratio: $ratio * 100;
@media only screen and (-webkit-min-device-pixel-ratio: #{$ratio}),
only screen and ( -o-min-device-pixel-ratio: '#{$opera-ratio}/100'),
only screen and ( min-resolution: #{$dpi}dpi),
only screen and ( min-resolution: #{$ratio}dppx) {
@import "retina";
.body-text {
font-weight: normal;
@include retina {
font-weight: 300;
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