Recently, I’ve been contributing to WebKit CSS Selector JIT compiler. There’s a nice overview about it written by Benjamin Poulain, he leads the CSS JIT project. Yesterday, I gave a presentation about WebKit CSS Selector Compiler. In this slide, I show the details of CSS JIT, mainly focusing on backtracking and code generation. I hope you like it! P.S. I've heard that CSS JIT is shipped in iOS 8 b