Help needed to fix display

Please help, I have inadvertently shrunk my display in editor so I almost can’t read it. Worse is the websitr also appears like this on the Internet. Everything is so small it’s difficult to explore.

Just a WAG but does pressing [Ctrl+0] (in Windows) or [Cmd+0] (on the Mac) reset everything to the proper/normal size for you?

Ok the website is not affected on Internet, just preview. Just need to know how to switch display back.

Thanks so much! I can read everything again

Excellent!