Google describes this and a bunch of other great stuff about how to optimize page rendering: http://code.google.com/speed/page-speed/docs/rendering.html#UseEffi

Google describes this and a bunch of other great stuff about how to optimize page rendering: http://code.google.com/speed/page-speed/docs/rendering.html#UseEfficientCSSSelectors http://code.google.com/speed/page-speed/docs/rendering.html#...