Critical Rendering Path

页面渲染过程：

https://developers.google.com/web/fundamentals/performance/critical-rendering-path/
http://taligarsiel.com/Projects/howbrowserswork1.htm

学习主题

How Browsers Work
Page lifecycle
Critical rendering path
Rendering a web page – step by step
Load and execution sequence of a Web page
web page performance
website speed optimization