Hi,
Well, as the CSS there comes from your template, it's something you're supposed to do in the CSS of the template and ask the template provider.
In the file templates/sj_kampe/css/template-cyan.css you have that code:
.hikashop_products_listing_main .hikashop_products_listing .hikashop_products .hikashop_container .hikashop_subcontainer .hikashop_product_image {
border-bottom: 4px solid #d3ebfb;
padding-bottom: 20px;
margin-bottom: 25px;
}
But it's missing a top padding to do like you want.
If you add such CSS there, it will display like you want:
.hikashop_products_listing_main .hikashop_products_listing .hikashop_products .hikashop_container .hikashop_subcontainer .hikashop_product_image {
padding-top: 25px;
}