I really hope that's sarcasm. Otherwise we will have people ripping out CSS, like how some people don't optimize because premature optimization is evil. I also don't want to go back to font tags.
I'm joking that people shouldn't write Turing complete code in CSS. Add style properties for days, more power to you, but if someone posts an implementation of Git in CSS next week I will promptly jump off a bridge, laughing all the way down.
Anything that can be implemented in CSS, shouldn't be.