body {
	margin: 0
}

#viewport {
	overflow: hidden;
	background-color: #fff;
	position: relative;
	margin: 0 auto
}

#viewport>div {
	position: absolute;
	margin: 0;
	padding: 0;
	background-size: contain;
	background-repeat: no-repeat;
}

#clickable {
	position: absolute;
	left: 0;
	top: 0;
	opacity: 0
}

#border {
	pointer-events: none;
	box-sizing: border-box;
	-moz-box-sizing: border-box;
	-webkit-box-sizing: border-box;
	border: 1px solid black
}