Space between two products on product listing page

Zen version 1.3.8 Fresh
Web Site https://www.educareglobal.com
Problem: On the product listing page, the images atr looking as if they are connected to each other.

How can i have some gap between them?

Pl. suggest

The following inserted into your stylesheet should improve the situation> .productListing-data a img {margin: 10px 0}

sorry, no improvement

That would be because there's no trace of the suggested addition in the stylesheet that you're using. The change needs to go into http://educareglobal.com/cart/includes/templates/classic/css/stylesheet.css.

As an aside, modifying the classic template without renaming first can be risky, as during an upgrade, these files are liable to be over-written. So you might want to consider re-naming your template files in order to protect your changes. There's more about this in the FAQ.