In practice, sometimes. But in principle, hard disagree.

HTML was explicitly designed to semantically represent scientific documents. [1]

”HTML documents represent a media-independent description of interactive content. HTML documents might be rendered to a screen, or through a speech synthesizer, or on a braille display. To influence exactly how such rendering takes place, authors can use a styling language such as CSS.” [2]

1: https://html.spec.whatwg.org/multipage/introduction.html#bac...

2: https://html.spec.whatwg.org/multipage/introduction.html#:~:...