es6 turn es5, Babel
https://babeljs.io/repl (common)
css module
1. Detection compatibility css
2. Online CSS color / transparency gradient source tools (common)
http://tools.jb51.net/code/css_generator
Plug-in effects module
1. Detection compatibility css
Blog
1. Zhangxin Xu blog
https://www.zhangxinxu.com/ (more like a blog)
Code hosting
Learning Website
1.w3school online courses
2. rookie Tutorial
3. Mu class network (buy less, currently prefer the teacher's July Course)
Image Optimizer (compressed images)
1.tinyPNG Tools
https://tinypng.com/ (common)
Figure 2. Chile
Cool special effects
1.codepen