Make the background of a text box invisible - Microsoft Support

You can remove the background and border of the text box, so that the text appears to float on top.

Create columns of text in a text box or shape - Microsoft Support

Text Boxes Computer Applications for Managers

How to create a see-through text box in Microsoft Word

How to create a see-through text box in Microsoft Word

When I click insert draw text box a large, gray decorative box

Add a fill or effect to a shape or text box - Microsoft Support

Make the background of a text box invisible - Microsoft Support

Set text direction and position in a shape or text box in Word

Get rid of invisible margin in text box, powerpoint. - Microsoft