Unpopular opinion: CSS is hard only because HTML is bad at what it does. It wouldn't be feasible, or even desirable, to replace HTML with something else at this

Unpopular opinion: CSS is hard only because HTML is bad at what it does. It wouldn't be feasible, or even desirable, to replace HTML with something else at this point, but it's a classic case of "the problem it tries to solve is not very hard, and it doesn't solve that problem very well".