Gutenberg 7.7.1 block preview too small for content, unable to navigate to preview.

[oldrup]

Describe the bug
Preview of blocks seems to be shown in an iframe(?) thats too small for its content. When trying to navigate to the preview to use the scrollbars, the preview disappears. Screencast attached.

To reproduce
Steps to reproduce the behavior:

1. add a post
2. click add block button
3. hover over a block
4. notice the preview

Expected behavior
I expect the preview to remain so I can navigate (using its scroll bars), to see the actual preview.

Screenshots
https://www.youtube.com/watch?v=JX9qth4RTR0&feature=youtu.be

Desktop (please complete the following information):

• OS: Windows 10
• Browser: Latest Chrome, Latest Firefox
• Version: Current latest stable version

Additional context
Gutenberg 7.7.1 from WordPress.og
1920x1080 screen resolution
No zooming done (100% zoom) in browsers.

[youknowriad]

Thanks for creating this issue, this is already fixed in master by #20817

[oldrup]

Oh cool! Thanks :)