The one major drawback however is maintaining the images and recompiling and uploading every time one of the sprites changes. CSS Auto Sprites changes all that by automatically building the CSS sprite image from files in a directory as well as generating sample code or live minified (and Gzipped) CSS for you to use. If you want to change one sprite, you simple replace it in the directory and the sprite and CSS is updated automatically. Don’t need an image any more, then just remove it and again everything is updated.