Hi,
If you were using Firebug, you wouldn't need to contact us for this simple modification.
It is very easy to take care this customization with using Firebug. More info:
www.flexiblewebdesign.com/forum-virtuemart-2-template-puremart-support/342-using-firebug-for-customization-or-troubleshooting
Ad your custom CSS rules into this file: /templates/flexible_coolmart/css/custom.css
Normally we don't provide support for custom modification, but this one is easy;
See the screenshot to see what needs to be done:
Attachment Pasted_Image_12_20_14__4_21_PM.png not found
regards.