Vimeo video covering dropdown menu

Site URL: https://biancafuscafilms.com/home

I've embedded a Vimeo video at the top of a page on my website. I've set the video to autoplay and everything seems fine except that it's covering the navigation dropdown menu and I can't figure out how to fix it. Is there a way to stop the dropdown menu from being hidden behind the video? The webpage is https://biancafuscafilms.com/home. 

Add to Home > Design > Custom CSS

div#pageWrapper {
    position: relative;
    z-index: 10;
}
.subnav {
    z-index: 9999 !important;
}

Thank you! I actually fixed it by adding this to Custom CSS

div#navigation{
  position:relative;
  z-index:50;
}
div#mainContent{
  position:relative;
  z-index:30;
}