body {
	text-align: center;
	font-family: sans-serif;
	color: #404040;
	margin: 0;
	padding: 0;
}
canvas {
	padding 0;
	margin: auto;
	display: block;
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
        width: 100vw;
}
.notice {
        opacity: 1;
        transition: opacity 2s ease-in-out opacity;
}
.hide {
        opacity: 0;
}
#shadow {
	display: none;
}