Perhaps there's a deeper question on the minimum height control. Technically it's working perfectly as intended: it's the minimum height, and whatever content is inside is free to expand the container beyond that. But of course that isn't necessarily intuitive for most people who might think of it as a plain height control, perhaps especially since the resize handle in the canvas suggests that to be the case.

I seem to vaguely recall @kjellr mentioning some issues related to height vs. min-height in context of Cover. I wonder if we should explore converting this to just height 🤔

Technically it's working perfectly as intended: it's the minimum height, and whatever content is inside is free to expand the container beyond that

I agree with that and I don't think we can swap this with height. It will create a tons of issues and confusion since everything is responsive and will create scrollbars, might cause issues with the fullscreen toggle, etc...

Maybe what we need here is a help text explaining a bit what min-height is?

Ohh a brief description might help. I still am strangely partial to having a warning of sorts to save the sidebar from getting even longer but that might be difficult to intelligently implement.