body {
	font-family: "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "メイリオ", "Meiryo", sans-serif;
    background-color: #FFFFFF;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-align: left;
}

canvas {
	max-width: 100%;
	height: auto;
}