If you’re trying to align all of those widgets then they’ll need to be inside the same div. The 3rd widget is inside an entirely different section. You added an empty text widget inside the 10th and 11th widget and then you added the content inside of the 12th widget area, and that definitely won’t work since it’s in a different location.
I create awesome sites for awesome people! Contact me if interested – firstname.lastname@example.org