Hello,
The CSS property that you are looking for is
.hikashop.products{
display:none;
}
Also note that if you want your CSS code to be only applied for mobiles, here is a
thread
where you'll find an example :
You can do the modifications in the frontend css file via the menu Configuration > Display > CSS
Use the @media tags to change the width of the columns when the width of the page is less than xx.
ex:
@media (max-width: 767px) {
.hikashop_products .row-fluid .span4 { width: 49% !important;}
}
Here is some documentation about the layout customization:
www.hikashop.com/support/documentation/1...ize-the-display.html