Page proportions are not restricted

Hey guys.

My site has had a little bit of a glitch and I’m unsure how to fix it.
The page proportions (I assume what I’m saying here is correct) are completely out.

I have no idea why this has happened as everything was in perfect alignment before hand and I never go into the code as I’m no web developer!

https://enigmaltd.com/product-category/dvds/

https://enigmaltd.com/product/odyssey

Any advice on how to fix this would be great!

Many thanks

Owain