Issue with spacing on images

Although I was able to "push" the Floating Social plugin graphics to the left, I was not able to adjust the spacing between the graphics.

http://radioviceonline.com/the-house-gop-plan-for-job-growth-16-bills-await-senate-action/

Note there is zero spacing between the Google, Facebook, Twitter and Stumble Upon "sections" of this floating bar.

Any ideas?

Steve