WooCommerce Product Image Alignment

Hi

I'm trying to align my products on http://www.xcelsupport.com (check Courses tab) and tried the following code but no joy

.woocommerce ul.products li.product,
.woocommerce-page ul.products li.product {
min-height: 293px !important;
display: inline-block;
vertical-align: top;
width: 30%;
}

Any tips?

Thanks
Farzan

PS: I've granted access for support if it makes it easier.