Template problem

Hi! 

We have a problem with our website. So as you can see when you click in the link, the top menu comes up white and it's supposed to be transparent as the video can be under the those buttons. 

We have the same problem with this website but this time it's the grey part: https://www.uton.is/

Does anyone know how we can fix this? I think the problem is the template that we are using. 

Thank you in advance.

Iceland music team.