html, body, canvas {
    margin: 0;
    padding: 0;
}

body {
	background-color: #303030;
}

canvas {
    padding: 0;
    margin: auto;
    display: block !important;
    position: absolute !important;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
}