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Image sprites are used in numerous web apps where multiple images are used. Rather than include each image as a separate image file, it is much more memory and bandwidth-friendly to send them as a single image, so the number of HTTP requests is reduced.

Quelle: Implementing image sprites in CSS – CSS | MDN

I’ve been a big proponent of icon fonts. Lots of sites really need a system for icons, and icon fonts offer a damn fine system. However, I think assuming y

Quelle: Icon System with SVG Sprites | CSS-Tricks

http://jensimmons.com/presentation/progressing-our-layouts