CSS image splicing generator http://cn.spritegen.website-performance.org/

CSS image concatenation (CSS Sprites) can effectively reduce the number of HTTP connection requests for image files. multiple images are merged into a large image file at a certain interval. the elements that use these images on the page will use the CSS attribute background-position to display the specified position in the image.

This technology can effectively improve website performance, especially when there are many small images on the webpage, such as many menu bar icons. Yahoo! The homepage is an example of this technology.

This is a cool technology. Under this mark, it can speed up website improvement.

See the official website: http://blog.csdn.net/dracotianlong/article/details/8555720