Product menu

Hi,

I have an e-commerce site: http://www.eldasign.com.

When I upgraded the version, gray rectangles appeared below each product in the product categories. These rectangles are there to choose options, or to add to cart. Anyway, I don’t want them on the menu, I only need them inside each product page.

How can I remove gray boxes below each product in the product category menu?
I just want the image of each product on the menu, not these gray rectangles.

I’ve tried with this code, but it doesn’t work:
.product_details, .product_item .product_price, .product_item .kad_add_to_cart { display: none;
}

Thank you very much in advance,

elda