Description

If the currently active theme does not define fonts, an unnatural border will be displayed.

I would suggest either of the following approaches:

Just hide the border

Show some text

Step-by-step reproduction instructions

• Activate Emptyempty theme.
• Open the Site Editor.
• Global Styles > Typography

Screenshots, screen recording, code snippet

No response

Environment info

No response

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