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by T-R
5459 days ago
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They're sending the Data URIs in a single JSON file, so it gives the same benefit (fewer HTTP requests) as normal CSS sprites. When you just combine multiple images into one (as you do for normal CSS sprites) you lose the information on the size/location of each sprite. An array of Data URIs keeps the images separate, so you don't need to put size/location information into CSS/Javascript/HTML. |
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