Video header

I want to use a video header on my home page. But i don’t know how to?

This is the website so far: <ahref=”https://www.carriereprikbord.nl/”>https://www.carriereprikbord.nl/

When you go to the tab “about” you can see the header moving, but that’s a plugin on a page. The header used on the home page is not a page or post.

Can any one help me out?