[gvx]

I don't know if CSS is Turing complete already, but I'm pretty sure it would have to be if it allowed you to implement something like that...

[dkbrk]

No, it would only need to be primitive recursive [0] because you can bound its runtime. There's actually a lot you can do without Turing completeness.

[0]: https://en.wikipedia.org/wiki/Primitive_recursive_function#C...

[__s]

Pure CSS game: https://codepen.io/elad2412/pen/hBaqo

Rule110 (After setting first row requires alternation of tab/space to run): https://codepen.io/elrumordelaluz/pen/wqLyH?editors=010

stackoverflow discussion: https://stackoverflow.com/questions/2497146/is-css-turing-co...