Change page margins

HikaShop Business 2.2.2
Joomla version -- : 3.2.2
SO Windows
PHP 5.4.19
MySQL 5.5.32

Hi,

I want to modify the margins in the product page.

As you can see in the attached picture there ir a lot of space between the principal image and the thumbnail images.

I have used the google tools and I think I have to change something in the class=hikashop_product_main_image but I don't know where I can find the file that has the code. I tried in Configuration->display->public CSS

Hi,
I think that reading that tutorial will probably help you.
Also, note that if you still need help, a link to the page where you're having your issue