Well, you could start with these additions to your userContent.css file (which you may have to create -- you can google the forum and find instructions). Some of this may help too.

Off-topic, but kinda related: I stopped by an Apple Store today and played with the iPod Touch. On Safari I tried loading this website's homepage, and it brought that browser to a crash, not just to a crawl! (Full disclosure: no other site I loaded on the iTouch had that effect.)