A post for the purists today. In PowerPoint, a text box and a rectangular coloured shape with text line up the same way: you hover them across the slides and "snap" lines appear that encourage you to line things up with items above or below. To do it correctly though, you need to make a small adjustment.
With my presentation app SlideMagic, you don't have to worry about this. I remember "arguing" with my developer why this was an important feature :-)