small req about character

small req about character

Hi guy, I need to modify the font size show in the cart.
Please visit my shop @:
http://www.dgmassistance.it/index.php?option=com_jshopping&controller=category&task=&category_id=&manufacturer_id=&label_id=&vendor_id=&page=&price_from=&price_to=&Itemid=268

As you can see the category description (like ACCESSORI, ADATTATORI, etc. etc) using (I think) 16 font size.
What can I do to reduce this?
Thank you.

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