Why doesn't the 'remove' button work on mobile cart in vertical mode?

On our site coalcrackerbushcraft.com we have the “remove” button in our cart next to the quantity. When on desktop computer i can click remove fine. When a mobile phone (iphone and android tested) is in landscape mode (sideways) i can click remove. But when the phone is vertical the remove button and quantity button do not work.

I have found that if i click in just the right spot above the word “remove” or above the quantity box i can make them work.

How do i get this line up correctly?

Anything?