Nothing. Given infinite memory, a NAND gate is Turing complete by itself and trivial to construct based on the OP examples.
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?
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?