Knowledge consolidation-performance optimization reduces HTTP requests

1. CSS Sprite diagram sprites

In fact, more advanced should be the icon into a font file direct reference

2. Image map

Similarly, the Coords property of the area tag

3. Merge scripts and style sheets, JS and CSS

4, use base64 code to reduce the request, only for teaching small pictures, or to 1 go, can be set to font

5, the new idea, the image is transcoded and placed in a particular object of the JS file, the reference to get the object's values directly to the picture

6 、................

Knowledge consolidation-performance optimization reduces HTTP requests