CSS for demo site

Looking for css used on demo side. I would like to modify for my site but need somewhere to start from the Module Class Suffixes are:
-cart
-switch
-identif
_effect3
-cat ctegory of products)
-related (related products)
-latest-product
-latest-products
-featured-products
-search

Thanking you.

Hi,

All the CSS of the demo website is in that file:
www.demo.hikashop.com/templates/hagane/css/template.css
You will find comments separating the different areas of the CSS file.