because a lot of people wouldnt go to the bother of using fully fledged javascript solutions for a tiny visual flourish.
most of these css techniques degrade very very well and are incredibly simple to implement, if it is a "this site MUST have this animation", then best to go down the jquery route, if its a "this will be nice to add" then doing it in css3 only saves a ton of bother.
>daleharvey: most of these css techniques degrade very very well
>j79: In addition (since you mention compatibility), adding this to a site wouldn't "break" it
The linked page looks like shit in Internet Explor 6,7, and 8 and is completely unviewable in Opera due to masking errors. It degrades horrendously and I would consider it broken.
most of these css techniques degrade very very well and are incredibly simple to implement, if it is a "this site MUST have this animation", then best to go down the jquery route, if its a "this will be nice to add" then doing it in css3 only saves a ton of bother.