body {
	height: 100vh;
	margin: 0;
	display: flex;
	background-color: #000;
}

#container {
	width: 80vmin;
	height: 80vmin;
	margin: auto;
	border: 0.5vmin solid #fff;
	box-sizing: border-box;
	background-color: #fff;
	overflow: separate;
}

.box {
	width: 10vmin;
	height: 10vmin;
	position: absolute;
	border: 1px solid #fff;
	box-shadow: 4;
	border-radius: 1vmin;
	box-sizing: border-box;
	background-color: #000;
	}