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alecperkins/gist:2251600

Created March 30, 2012 13:35
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Retina images with CSS background-image
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gistfile1.html
<!doctype html>
<html>
<head>
<style>
div.image, div.image1x {
width: 1024px;
height: 768px;
background: url(image_1x.jpg) no-repeat;
-webkit-background-size: cover;
}
@media all and (-webkit-device-pixel-ratio: 2) {
div.image {
background-image: url(image_2x.jpg);
}
body {
color: red;
}
}
</style>
</head>
<body>
<div id="image_div" class="image"></div> This text is red if the device has a pixel ratio of 2. Tap the image to switch to the 1x version.
<script>
image_div.onclick = function(){
if(this.className === 'image') {
this.className = 'image1x';
} else {
this.className = 'image';
}
}
</script>
</body>
</html>
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