Mozilla Firefox Issues

Hey Folks,

I am having some trouble figuring out why my form won’t sit right in Firefox. Would be ever so grateful if someone had a look and could tell me what I’ve done wrong.

Here is the page link:

Form

Below is an image of the form in Chrome, everything is fine:

Then if you look at the same page in Firefox you can see it sticks out at the bottom exactly 20px which is the padding I added to the Form - Content div. I need this padding so don’t want to remove it.

Also, if you then look at the datepicker through Chrome, everything is fine:

But if I click on the datepicker inside of Firefox you can see from the image what happens:

I hope it’s just something simple I am not seeing but I’ve spent a while trying to figure it our but jusst couldn’t. Any help would be gratefully received.