body {
	margin: 0;
	padding: 0;
}
.box {
	height: 100vh;
	padding-top: 100px;
	box-sizing: border-box;
}
.video {
	width: 100vw;
	background: #000;
}
.ads {
	width: 100%;
	/* height: 300px;
	background: #666; */
	position: fixed;
	bottom: 0;
	left: 0;
	right: 0;
}