Sometimes, Gmail goes out of the computer screen making emails too wide and difficult to read. In such a case, you can resize the Gmail window.

Here’s how to split your screen on either a Mac or Windows computer, a great tool for multitasking. Splitting your screen is a great tool for multitasking. (Photo by Phil Barker/Future ...

A handy tool for presentations, demos and even accessibility, ZoomIt lets you zoom in on the screen, mark up the current page, and even capture your screen activity.

So, to solve the problem of your windows resizing to full screen turn off the Drag windows to menu bar to fill screen option in Settings > Desktop & Dock.