canvas {
	display: block;
	margin: 200px auto;
	box-shadow: 5px 5px 10px 5px #8e8e8e;

}

@media  screen and (max-width: 520px) {
	canvas {
		margin: 100px auto;
	}
}	
header {
	margin-top: -100px;
	text-align: center;

}