Is ther such a card that is just a holding place for other card in Lovelace

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1

Is there a card that is just a holding place for other cards?
I ask this as I want to use card mod to inject some css to the layout of the cards on different devices, and adding the css to each verical stack would look wrong.
I have tried stack in card, and bootstrap card but they break the layout.

2

There is quite a few, 1 very flexible is Layout-cards

3

I fill empty grid or stack slots with a mushroom card spacer.