Category list module problem

Hi, I'm using an Artisteer template and a Hikashop content module to show the categories in the left hand column.
For some reason the child category layout is not showing one category per line. I've tried just about everything in the CSS (artisteer and hikashop) to fix it but nothing works.
Here is my module setup and front end result. Any help appreciated.

Hi there,

I think it's a css issue coming from your template.
Please give us a link to your website so we'll be able to take a look and propose a solution.

Thanks Eliot, I eventually fixed it by adding this to the Hikashop css:

.hikashop_category_list_item, .hikashop_product_list_item { float: left !important; width:180px; }

Works perfectly now!