fgnass/spin.js — pull request #102 by skilesare (2012-10-15 22:09:49+00:00)
Title: Updated the code so that auto will center the div in the containing div.

I'm not sure what this line was doing, but it was setting the position of my element to 0,0 which was in the upper left corner. I had nothing in my div so maybe the height wasn't work properly? 50% on each centered the spinner div in my div.