The divs containing the buttons have a class name of '.button' and are inside a div with a class name of 'wa_social_counter_hr'.
I can't locate rules for these classes in your stylesheets, but you may know where they are. If you can't find the rule to edit, add the following to the end of your page_templates.css:
.wa_social_counter_hr .button {float:left; padding:5px 5px 0 0}