html,
body{
	font-family:Meiryo,"Hiragino Kaku Gothic Pro";
	height: 100%;
	margin: 0;
	padding: 0;
	position: relative;
}

canvas{
	position: fixed;
	width: 100%;
	height: 100%;
	-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
	z-index: -10;
}