Mobile app screen format

Hi all,

Trying out mobile app development in Bubble, but after I selected Mobile App in the setup process the view got all messed up. It cut took the default website page and cut out a portion the size of a phone screen.

I want the editor under the design tab to look like an iPhone screen, not just a cutout of website page. Can someone show me how to set that up? Right now, because it’s just a slice of a website page, I can push icons and text boxes out of the screen, which shouldn’t be happening.

Thank you!