div#container {
	display: flex;
	flex-flow: column;
	height: 100vh;
}

div#top {
	margin: 5px;
}

div#set-viewer {
	flex: auto;
}

div.selector {
	border: 1px solid black;
	background-color: rgba(0,0,0,0.1);
}

body {
	margin: 0;
	height: 100vh;
	overflow: hidden;
	font-family: sans-serif;
}