unable to modify product image

Hello,
The product images on my website seem to be have gone corrupted. They were fine recently but, the actual product page shows the images very small.

The below code was provided to me to modify the image on two different pages. One was on the product summary (http://www.epiceworld.com/shop/) and the other for individual product (http://www.epiceworld.com/shop/cinnamon-powder-cassia/). Please could you tell me which code control the products.

.summary.entry-summary { width:30% !important; }
.images.hb-woo-single-images { width:30% !important; }

Thanks.