Unfortunately the examples provided by OP only contain combinational circuits, which by def. have no memory.
Well, there are half and full adders, maybe a flip-flop would be feasible?
If we can introduce delay in the circuit it would be trivial to build FFs from Boolean-complete gate sets, thus sequential elements with memory. But AFAIK CSS if() can't introduce delays.
Keyframe animation?
Well, there are half and full adders, maybe a flip-flop would be feasible?
If we can introduce delay in the circuit it would be trivial to build FFs from Boolean-complete gate sets, thus sequential elements with memory. But AFAIK CSS if() can't introduce delays.
Keyframe animation?