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Chapter 3. Rule 1: Make Fewer HTTP Requests > CSS Sprites
3.2. CSS Sprites
Like image maps, CSS sprites allow you to combine images, but they're much more flexible. The concept reminds me of a Ouija board, where the planchette (the viewer that all participants hold on to) moves around the board stopping over different letters. To use CSS sprites, multiple images are combined into a single image, similar to the one shown in Figure 3-2. This is the "Ouija board."
Figure 3-2. CSS sprites combine multiple images into a single image
