Thank you. I thought I tried this already but I had a typo grid_area instead of grid-area.
Now it works with the “markdown” cards but I can’t get the custom:media-source-image-card fit into the grid. It always breaks the grid.
I tried to but the image-card into a custom:stack-in-card.
Can you see why the image exceeds the “main” grid-area?
I do not have this custom card. Replace it with a standard Picture entity card to see what happens.
Also:
What is the point of placing a card into stack-in-card here? Was it done only to allow using card-mod for that “custom:media…” card since it (just a guess) does not have own ha-card element?
Options “weight/height” does not belong to stack-in-card.
I tried to use the custom:stack-in-card as a kind of a wrapper.
Thought I did this before but you are right the custom:stack-in-card has no height/width.
With a normal picture entity card I get the result from the beginning. The grid doesn’t fill up the whole space…