“In principle” is meaningless. Even the semantic tags that do exist are ineffective, as they aren’t used in practice (see TIME), completely ill defined (see CITE), or correspond to common use cases.

In practice — and that’s all that really matters — what you get are a mass of DIVs and SPANs where if there is any semantic information, it exists in the open vocabulary of CSS style classes.

https://www.w3.org/TR/html52/textlevel-semantics.html#elemen...

https://developer.mozilla.org/en-US/docs/Web/HTML/Element/ci...