Y'know, I suspect certain groups of modernist painters would have a field day with CSS. De Stijl for instance would love it. There is something so elegant and fun about using a medium that forces you to use only circles, rectangles and a few select curves under a few simple transformations.
I was visiting a 20th century art gallery and was joking with my friends about which painters could be implemented in CSS (Yves Klein ofc). Maybe I should go ahead and do it. There's a few Mondrians that'd be fairly easy.