The iPhone, like Safari and many other browsers, runs on WebKit, which is one of the most blazing fast, powerful, standards-compliant rendering engine ever. Although there is no official Cocoa API for iPhone app development, it’s not like we have nothing to work with. Writing web apps for the iPhone will be a pretty good experience for two reasons:

1. We don’t have to worry about IE support when writing our web app
2. WebKit is amazing.

Highlighted below are ten CSS rules that make WebKit extra-great. Many of the previews require a WebKit-based browser like Safari, OmniWeb or Shiira.