I would like to separate the rows in the product listing display with a css border- bottom line or anything else that works. I am using the Column Layout Grid for Product Listing.
I was able to figure out where to place the css code for new and all products column layout mod, but can't figure it out for product listing.

Here's my all products listing page so you can see what I am trying to achieve on the product listing page.

http://tsdog.com/index.php?main_page=products_all

Thanks!!!