Shop: css issue

Hi,

I'm creating this blog:
http://liquidasites.com.br/secincendio/loja/

I do not know why, but the last product has a diffent with and height. The image is very big and cropped. In addition, when I click on "Saiba Mais" to see the desription, the image is very big and when I hover the mouse on the image, the zoom is weird.

What is happeding?

Please, help.