For some reason this reminds me of being 14 writting assembly to take over the graphic card and reading various LaMothe books on game programming. Looks nice on the new firefox, no display on ie9.
I think i'll stick to canvas but definetly a neat hack.
I need to look into ie9's support for CSS transforms, but if it supports that it should work. It definitely took me back to my high school days of 3d hacking :)
EDIT: Currently, it also needs to support linear-gradient background images because that's how I draw a triangle with a div. I don't think IE9 supports that unfortunately.
I think i'll stick to canvas but definetly a neat hack.