If people envisioned that web would become an application platform, maybe we wouldn't have CSS and HTML but instead some sort of lower level bytecode (ala WASM)

If people envisioned that web would become an application platform, maybe we wouldn't have CSS and HTML but instead some sort of lower level bytecode (ala WASM) and the actual higher level document and styling tools would be separate and compile to this bytecode. It makes me shutter every time I imagine how much you have to cover from CSS and HTML alone for a function web browser. This method is pretty much ternary operator and it requires a browser support to be used, insanity.