[Plugin: Simple Social Buttons] Space between Twitter and Facebook button

Hiya,
First off, thanks for the awesome plugin. Makes my life so much easier 🙂

The small question I have is, how can I add an extra space in between the twitter and facebook button? Here’s my blog:

http://www.surpriseaholic.com/

There’s a nice space between the Pinterest and Facebook buttons, I’d like to add that between the other two buttons as well.

Thanks!
~Lucy

http://wordpress.org/extend/plugins/simple-social-buttons/