Ability to set 0 margin for embedded cards

[accforgithubtest]

What is your problem ? A description of the problem, not the solution you are proposing.

I seem to be wasting a non-trivial amount of screen real estate due to embedding cards to 2 or 3 levels (i.e a card which embeds a sql file, which in turn is a card that embeds another sql which is also a card ... ).
FYI - I needed to create the 2 or 3 levels of embedded cards because because the video url from go2rtc doesn't behave as expected (height and width issues) when embedded directly into parent page. This is a url for security cam video feed embedded into a sqlpage screen which is displayed in a kiosk mode screen on a 27" 1080p monitor.

The feature request is about not wasting few pixels of margin created around each card, which multiples with embedded cards.

What are you currently doing ? Since your solution is not implemented in SQLPage currently, what are you doing instead ?

If there are any ways to set 0 margin for cards with embedded sql, please let me know.

A clear and concise description of what you want to happen.

Would like to be able to set 0 as margin either at the top-level parameter, or at row level parameter which might give more options to control the margins.

A clear and concise description of any alternative solutions or features you've considered.

If there are any ways to set 0 margin for cards with embedded sql, please let me know.

Thank you for your time and consideration !