What is your best bet for creating presentations with CSS/web techs?

It should be

• Printable (to PDF)

It would be helpful, to be rather interactive, than to be beautiful. Function is more important than beauty.

I am trying Reveal.js in Markdown Preview Enhanced for VSCode (with <!-- slide -->); and, as always, trying to override CSS in Reveal.js is frustrating, and even more difficult to debug for Print.

• Using scale by default in this library is deadly for both vh and vw; so I cannot use them

I know there are many other libraries, as seen here; but which are good?

Bespoke.js •  deck.js •  DZSlides •  Flowtime.js •  impress.js •  Inspire.js •  NueDeck •  remark •  reveal.js •  RISE •  Shower •  Slidy •  WebSlides