Centering image so title drops beneath it

I’d like to center the image I’ve inserted into the Image Widget so when I add a title, the title will display underneath the image. Right now it starts to the right of the image and wraps into the line below. Can someone help me format the placement of the title? Thanks!

Erin

http://www.revolutionfitnessusa.com/
Scroll down to Fitness icon and see how the title “Easy to follow fitness routines” wraps around the image.

http://wordpress.org/extend/plugins/image-widget/