*{
margin: 0;
}
.bloc {
	position: relative;
    height: 100vh;
    width: 100%;
	overflow: hidden;
}
.bloc video {
	position: absolute;
	min-width: 100%;
	min-height: 100%;
	top: 50%;
	left: 50%;
	z-index: -100;
	transform: translate(-50%, -50%);
	
}