Center the avatar_upload shortcode?

I would post the link to the page that I am playing with, but you can’t see the results of the shortcode without being logged in…LOL!

Is there a way to center the avatar_upload on the page where it is inserted? I would like to have it all centered as opposed to being left justified. I am assuming that it is some sort of evil CSS magic, but other than that, I am clueless…

Thanks for the help and what looks like a nice plugin!