Container is not collapsing when empty

[CFenner]

Describe the bug

I've a dashboard RPi that is always displaying a HA dashboard with the battery card.
Recently I witnessed that the battery card was empty after I changed the batteries due to the filter. But the space was not used by the entity on the right side of the card.

I'll try to reproduce the issue later at home of make a foto of the dashboard.

How to reproduce

• Create a dashboard (new default kind).
• Add a full-width section
• Add a battery card that conditionally displays battery entities.
• Add cards to the left and right.
• Make the battery card display an entity
• Make the battery card display no entities
• Now there is a gap between the two surrounding cards but the battery card is not displayed.

Expected behavior

YAML configuration

# please paste here your card config (before backticks below; do not remove them)

Entity debug data

Dev console errors

Screenshots

Version

[CFenner]

Here now a screenshot:

Or maybe that's an issue of the section layout?

[stout01]

I'm running into the same issue. I started looking into how the built-in conditional card works. It sets hidden on the hui-card element. That component also creates the hui-card element so it has it available to modify.

I'm not sure how hui-card is created for battery-state-card. We could try modifying the parent element, but I'm not sure what side effects that would have.