Part of this article is quoted from the famous domestic front-end development siege master----Cao Liuyang (Adang). He once published the book "Writing High-Quality Code--The Way of Cultivation of WEB Front-end Development" and became very popular. He now works for Shanda Innovation hospital. According to the evaluation of a domestic survey agency, the content involved in this article is worth over RMB 10,000 in the IT training industry. Adhering to the great spirit of teacher A Dang's knowledge sharing, part of the content is now published to share learning with all children.

With the development of technology, front-end requirements are becoming more and more complex. The functions and products that can be implemented on the front end are becoming more and more powerful and abundant. For example: Sina Weibo's in-webpage chat tool, Google Maps, page music player and the more powerful WEB-QQ, etc. The arrival of HTML5 and CSS3 at lightning speed is more like a heavy bomb, which has had an immeasurable impact and expectation on website development and design. Friends in need can download and take a look