Steps to reproduce:
- Open a page with VE
- Edit something in the edit mode
- Click on Read from the menu bar to navigate away from VE
- Observe the Confirmation dialog for discarding the edit
There is a scroll bar appearing for the text area of the confirmation message and the buttons for "Discard edit" and "Continue Edit" are on top of each other instead of being next to each other.
More visible with the "Message dialog (verbose)" from OOUI demo – first and next open side-by-side: