hi, see this page http://www.go2business.it/cart/ as can you see there are wrong layout for the button, is too width. And when there are the delivery cost, the note text for delivery are wrong. The the example attached.
i resolved with:
.single-product .type-woocommerce { width: 100%!important; border-right: 0; padding-right: 0; margin-right: 0; } .single-product .sidebar { display: none; }