[catchmeifyoucan]

are there tools for parsing/editing/outputting HTML+CSS? Yes!

Creator of Airppt here -> https://airpptx.github.io

Drag and drop a UI in powerpoint with your layout, and poof, you get a UI in HTML/CSS. Don't try anything too complex or fancy, and take a look at the limitations.

I haven't published on Show HN yet, still a work in progress - but a side hobby of mine