WebKit now supports gradients specified in CSS. There are two types of gradients: linear gradients and radial gradients.
For us geeky web designers out there this is just plain Cool!
For those not so geeky, it means this: what could have taken over 20 lines of code can now be done in 1. Oh and when you're browsing, you won't have to download all kinds of drop shadow images – which means faster loading times.