how browser works

https://developers.google.com/speed/articles/reflow

http://blog.letitialew.com/post/30425074101/repaints-and-reflows-manipulating-the-dom

http://taligarsiel.com/Projects/howbrowserswork1.htm#The_browsers_we_will_talk_about 

http://www.phpied.com/rendering-repaint-reflowrelayout-restyle/

http://www.html5rocks.com/en/tutorials/internals/howbrowserswork/

http://taligarsiel.com/ClientSidePerformance.html

https://vimeo.com/44182484

http://dbaron.org/talks/

http://2012.front-trends.com/speakers/#tali-garsiel

https://developer.yahoo.com/performance/rules.html