Paragraph block automatically adds top and bottom margin

[paaljoachim]

Description

I am using the Gutenberg plugin Version 15.9.1
Twenty Twenty Three.
WordPress 6.2.2

Paragraph block adds a margin in the top and bottom.

This is what I did.

1. I added a Cover block with a full width image.
2. Added a Paragraph block. Added a background color.
3. Added another Cover block with a full width image.

Frontend:

Notice the added top and bottom margin.

Btw one should also be able to have alignment controls the same as Heading. New issue coming up if one does not already exist.

Step-by-step reproduction instructions

Screenshots, screen recording, code snippet

Environment info

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes

[paaljoachim]

Associated issue:
Post Content block adds additional margin one can not remove through the UI
#51242

[paaljoachim]

There is currently an add alignment controls to the Paragraph block issue here:
#31429

[talldan]

What's the expected behavior?

The margin could be the block spacing, but it's hard to tell.

[tellthemachines]

That's the block spacing, which appears between all root blocks in the post editor. My comment here also applies: the spacing can be reset in global styles. The problem is that, if you set it to 0, there will be no space at all between blocks in the post content, which is probably not desirable.

[paaljoachim]

I added a comment here: #51242 (comment)

The basic problem is that white space shines through which disrupts the layout choices of a user. The white space is something the user does not understand how to remove (as it is not seen in the UI of a block) or have initially selected to have added to their layout. So we need to figure out a solution that works technically as well as for a user created layout which adds background color.