body {
	margin: 0;
	padding: 0;
}

#content {
    margin: 0px auto;
	
	width: 100vw;
	height: 100vh;
	
	display: flex;
	display: -webkit-flex;
	
	flex-direction: column;
	-webkit-flex-direction: column;
	overflow: hidden;   
}
header {
	box-sizing: border-box;
	-webkit-box-sizing: border-box;
	background: #aaa;
	margin: 0;
	padding: 3vh;
}
header,
input {
	font: normal 12pt/1.2em Lucida Sans, Arial, Helvetica, sans-serif;
}
article {
	background: #ccc;
	text-align: center;
	box-sizing: border-box;
	-webkit-box-sizing: border-box;
	margin: 0;
	padding: 1vh;			
}
@media screen and (min-aspect-ratio: 1/1) {
	article canvas {
		height: 70vh;
		width: auto;	
	}
}
@media screen and (max-aspect-ratio: 1/1) {
	article canvas {
		width: 70vw;
		heigth: auto;
	}
}


