With the inclusion of branches, is it possible to say that CSS is now even more Turing-Complete? Now we just need to find ways to do recursion/targeted jumps so that it is finally recursive-enumerable
CSS if() probably just merges one of two single-property RuleSets onto the parent RuleSet depending on the condition, which has nothing to do with branching, as there is no execution flow to branch.
And, maybe, in a TTF font.