How can the floating social box be styled?

Hello,

How can the floating social box be styled? Out of the box it looks really dated, I'd like to style it up more and ideally use my own graphics for the links.

Also, the link images and counters are all different widths, some are cut off at the edge of the box and some break out of the box.

I'd also like to add a regular share button for facebook rather than (or as well as) a like button?

Please can someone advise as it can't be used like this, looks really unprofessional.

Thanks!