body{-webkit-touch-callout:none;-webkit-tap-highlight-color:black;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;background:#000;color:#fff}canvas.centering{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:95vmin;height:95vmin}canvas.topCenter{position:relative;padding:0;margin:auto;display:block;width:95vmin;height:10vmin;z-index:1}