Theme Elemental: Set Page Height to 100%

Im using the Theme Elemental, Concrete V9.2.7, PHP 8.3.

I would like to make the page to use 100% of the view.
To do so I set:
body{min-height: 100vh} (this seems to work)
div page-template-full{min-height: 100%} this has no effect

How do I fix this?
Thanks and Greetings

This sounds more like a CSS question than a Concrete question, but I think you’d use vh for both.