Woocommerce product page not showing properly

Hi,
I’m having problems with my theme’s (North) Woocommerce product page.

It seems my product page details are overwriting my my footer. It looks really weird.

Can anybody help me? I don’t know what to do.

https://www.janetandgeorge.com/shop/women-clothing-dresses/gemma-dress/?preview=true&preview_id=108&preview_nonce=8f4b2ae05a

I also want to resize the product image? Also the other product thumbnail images are overriding the Add To Cart button. Is it possible to change this?

Many thanks for your help.