I am very sorry if I ask pretty stupid question, but I tried to find answer from here and everywhere in the ínternet without finding help at all. It is possible that I just didn't have the right search words.

Anayway I am making a webshop to a friend who wants to use thumbnail images at least 180px times 120px. I can do this but if I use thumbnail images that size they don't have any distance between each others (as if they were one high pic) in product list view. It is neccessary to have some empty room between pictures. I have been looking for a solution to this in zen-cart settings but I have not find it. Maybe the picture here helps a bit to understand what I mean: http://tsehov.viuhka.fi/tiedosto/pic.png

Thank You all in advance for Your possible help.