This can go into “Custom CSS” setting of this section:
.video-section .video-section__media {
height: calc(100vh - 76px);
width: 100%;
padding-bottom: 0;
}
@media (max-width:990px){
.video-section .video-section__media {
height: calc(100vh - 68px);
}
}
It’s not the best because the height of the header changes 76 px on desktop and 68px on mobile