Thank You message won't scroll!

I looked through the forum to figure out how to change the background of the thank you message. Did that, but now it won't scroll. This is a problem because you can't see the bottom link on mobile. Desktop is fine. I believe it's something in this part of the code:

 <div style="background-size: cover; background-image: url('http://www.gestaoestrategia.com.br/mobile/back.jpg'); background-repeat: no-repeat; text-align: center; height: 100%; width: 100%; position: fixed; left: 0; top: 0;">

Thanks!

Please try removing the positioning (the red in your codes).

If that won't work, please try using the default thank you message page. That should work. Otherwise, I would recommend using a custom thank you page and redirect users to that page. Here's how:

http://www.jotform.com/help/38-Redirecting-Users-to-a-Different-Page

Thanks