Hi
On this page: http://tourdeodense.dk
I have put some of my own templates in the bottom. Its the orange form that I have saved a put in and the parallax image with text above.
It seems the builder’s layout has been broken. Chances are, there’s an extra opening/closing div tag somewhere on your custom HTML. Can you double check?
I just logged in to your site and noticed you have W3 Total Cache active. Can you disable that plugin and see if it fixes the issue? I did check your page’s markup and it looks like everything is good there.