html {
	background-color: #22191b;
}

body {
	margin-left: auto;
	margin-right: auto;
	width: 50%;
	height: 100%;
	background-color: #ffffff;
}

.heading {
	margin: auto;
	width: 100%;
	height: 120px;
	text-align: center;
	border-bottom: 4px solid #feb2ac;
}

.video {
	margin: 12px auto;
	width: 560px;
}

.usage {
	margin: 48px 12px;
	height: 240px;
}