CSS3 'Cross-Browser Rule Generator'

Paul Irish and Jonathan Neal have created a fun site listing of various CSS tweaks that you can make, and see the results instantly. CSS3, Please! lets you play with fancy new rules such as: border-radius; box shadow; gradients; rgba support in backgrounds; transforms; font-face.More info: CSS3 Rule Generator[Source]

Paul Irish and Jonathan Neal have created a fun site listing of various CSS tweaks that you can make, and see the results instantly. CSS3, Please! lets you play with fancy new rules such as: border-radius; box shadow; gradients; rgba support in backgrounds; transforms; font-face.

More info: CSS3 Rule Generator

[Source]