I like the reset.css approach that both frameworks use. This will normalize your document so that it looks the same in various browsers. Then you can start re

I like the reset.css approach that both frameworks use. This will normalize your document so that it looks the same in various browsers. Then you can start re-building your look using their guidelines and the fonts.css or typography.css and to create consistency across common browsers and operating systems. It's quite amazing how different a blank html document with an h1 and p tags looks from one browser to another let alone from one OS to another (margins, padding, etc). The examples with both frameworks give you something to try out before you use it too so you can see how it will look.