CSS3 and HTML5 brings back bad memories. It's easy to abuse, I've done it myself intentionally here: http://cats4gold.net/ostar/ - CSS 2D transforms, CSS background-size, CSS3 selectors, HTML5 audio and JavaScript.
I can't wait until those christian revelation ministry sites (one in particular I can't remember the name of) get a hold of this stuff. They were excellent at abusing DHTML.
Oh I've tried it. It's not really as good as they claim, I reckon a good part of it is placebo.
By the way, the site is actually a collaboration between me and two others. Orangestar had put up some binaural beat files on his website, so cats4gold and I jokingly made this site in his name to promote them. And then it kinda grew fr
m there.
If you enter the site, you'll notice it is not actually one site, but three linked together.