I don't think that there are programs that generate CSS within this particular constraint of one div. This is more akin to code golf, where you attempt to push

I don't think that there are programs that generate CSS within this particular constraint of one div. This is more akin to code golf, where you attempt to push the boundaries of what is possible within a strict set of limits. More information is available here: https://github.com/lynnandtonic/a-single-div https://github.com/lynnandtonic/a-single-div