Comment by Finnucane

18 hours ago

It's not a direct substitute at all. It's not intended to be. And--it's on the vendors for making crap software and not keeping up.

Especially because what Adobe failed to do was follow a CSS1 requirement: if you don't understand a line, skip it and move on to the next line. Adobe didn't need to predict CSS4 in the 2010s, Adobe needed to understand CSS1 better.