Center text during JQuery animation

Center text during JQuery animation

 I currently have a very simple animation that increase the font size of a text as if you are running a magnifying glass through it.  The only problem is it increases from the upper left corner, whereas I would prefer it to increase from the center.

Here is a link to where the code currently is:

I don't want to hack it by changing the position of the text during the animation, then changing it back post-animation, but I that is the only way I can think of.

Any suggestions would be greatly appreciated!