[DerBesserWisser]

HTML is a markup language and not a programming language.

IMHO you can only "code" in programming languages (not necesseraly executed by a CPU).

A programming language does not need to be turing complete though to "code" in it. You're just limited to the problems you can solve with a turing-incomplete language.

It's interesting to think if using a problem-declaration language is coding.