Add button creates separate column?????? Help

I have never added a button to my emails before, and I thought it would be easy. So I just dragged a button widget fromt the Build area and dropped it into my email. That should have been easy. But the button appeared in its own column to the left of the email.  Of course, I just wanted the button in-line, and I can't figure out how to do this simple thing. Any advice would be greatly appreciated.

Jerry