#videoBG {
	position:fixed;
	z-index: -1;
}

@media (min-aspect-ratio: 16/9) {
	#videoBG {
		width: 100%;
		height: auto;
	}
}

@media (max-aspect-ratio: 16/9) {
	#videoBG {
		width: auto;
		height: 100%;
	}
}