Big space on right side product category page

Joomla 2.5.6.
Hikashop starter 1.6.0

There is a big space on the right side on the product category page, and it look really bad.
I have tried to switch template but there is still the same problem. I need it to be the same space as on the left side.
Please see attached image

Hi,

Can you give me a link to your web site, then I'll maybe be able to help you with your CSS ?

Thanks.

Hi.
Thank you for reply.
Yes you can, here is the link
www.kvikkimedia.no/nettbutikk/category/12-rengjoring

Please have a look. Looking forward to hear from you =)

Can you :
- Go to "Hikashop->System->Configuration->Files/images"
- Set a smaller "Thumbnail width/Lenght"
- Tell me if it solved your problem.

Thx for reply Nicolas

What CSS file do I need to modify in order to fix this ?

OK tnx for reply
I added the code....

.hikashop_products{
width: 105%;
}

...."in the hikashop frontend CSS file that you can edit via the Display tab of the configuration."
Thereafter I cleared my chache in the joomla-back-end also. But I still have the same problem, nothing happend.
I use yootheme templates with WARP 6 system, so I also tried to ad it to my templates custom.css file, but still the same problem.

Any idea ?

OK it works !

My mistake.

But I have the same problem with the categories.

What code do I have to put in to fix it with the categories ?

tnx