CSS. Scale all app`s elements

Hi All,
How can I scale all app`s elements in CSS to 75% (buttons, links, labels, data grid sections…) like UI scale in the Anvil settings or scale 75% in a browser?

My fault. I`ve developed app for UI scale medium and then realized that it doesn’t fit in a browser window in the real life.

I’ve tried transform: scale(0.75), but that shrink all app, not elements in the app.
I’ve tried zoom: 75% in the body {…}. It`s better but app has vertical shrink, vertical scrolling appears (and empty section appears on the bottom with height 25%)
Screenshot 2023-11-26 140846

Thank you.