#container #canvas{width:100%;}#container #canvas,body,html{height:100%;}#container,body{background-color:#222;}body{padding-left:0;}body{padding-bottom:0;}body{padding-right:0;}body{padding-top:0;}body{margin-left:0;}body{margin-bottom:0;}body{margin-right:0;}body{margin-top:0;}body{display:flex;}#container:fullscreen{text-align:center;}body{align-items:center;}body{justify-content:center;}#container:fullscreen #canvas{width:auto;}