CSS is overall pretty great and I've seen at least a couple non-web GUIs rip out their bespoke GUI systems and replace them with CSS or something very much like it.
I think the big change will be better support for hierarchical definitions, including but not limited to nesting. TFA discussion would be pretty moot if there were namespaced properties that could somehow fit under display: masonry; rather than polluting the global namespace.
I think the big change will be better support for hierarchical definitions, including but not limited to nesting. TFA discussion would be pretty moot if there were namespaced properties that could somehow fit under display: masonry; rather than polluting the global namespace.