body{margin:0;padding:0}canvas{width:100%;height:100%;display:block}.info{position:absolute;left:20px;top:20px;width:calc(100% - 40px);max-width:400px;background:hsla(0,0%,100%,.9);font-family:Arial,Helvetica,sans-serif;font-size:12px}.info a{color:#000}