Virtual display with scrollbars

[waslap]

I am experimenting how to handle a user interface designed for a specific output display size e.g. HD being used from a computer with a display of lesser resolution. Ideally I would want to somehow have an HD canvas in the browser to which Qt renders the U/I and scrollbars appear in the browser by which a user may selectively see the enture U/I. Is this somehow possible outside of Qt with the web asm loading/initialization ?