Select the controls that you want to size to the dominant control. For more information, see How to: Select Multiple Controls and the Dominant Control.
On the Developer tab, in the Arrange group, click Size, click Make Same Size, and then click one of the following.
|Width||Make all selected controls the same width as the dominant control.|
|Height||Make all selected controls the same height as the dominant control.|
|Both||Make all selected controls the same height and width as the dominant control.|
Note To size a control to fit its contents (both its picture and any text assigned to the Caption or Text property), select the control, click Size in the Arrange group, then click Size to Fit.