Here is a ink to 2 pages:
There is a newsletter sign up form field in the footer. Trying to submit the form without entering anything will result in a Modal popping up giving a validation error.
My problem is that on page 1 the modal overlay covers the modal content and on page 2 the overlay works as it should do.
To my tired eyes the structure and css or both pages is identical however there must be an element in the cascade that is causing the difference.
If anyone can spot it I would be very grateful.