The css framework actually appeared very early. The reason for its emergence is that css code, like other codes, is often highly repetitive. Experienced engineers will summarize their own reusable code. In order to be applied to different projects, the excellent and well-known ones have become the css framework we are familiar with, which is actually a set of universal css code.
This article lists some of the most popular CSS frameworks on Github for your reference. UI front-end framework carefully developed for 5 years!
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
