While you're writing in the box, a Format tab will appear in the top taskbar, which you can use to customize the box's text (font, character size, etc.) independently of the regular document's text.

How to reverse or mirror Text in Word Follow the steps below to mirror a text in Word: Launch Microsoft Word. Go to the Insert tab, click the text box button, and select Draw Text Box from the menu.

Microsoft Word’s content controls make it easier than ever to use dependent controls in your templates to update content all at once.