Sometimes you need resize the frame in your Prezi presentation to make your content look bigger or smaller, but unfortunately when you select the frame, all content also gets selected, making the resize virtually impossible. I think this has happened to almost everyone who has ever used Prezi and it can be quite frustrating!
Fortunately there is an easy fix: Before you select the frame with a left-click, hold down the Alt key (Option key on MAC). This way Prezi will only select the frame and you can resize it without affecting any of the content inside. This works with all frame types: bracket, circle and invisible frames. Watch a short demonstrational video: