html,body{margin:0;height:100%;position:absolute;top:0px;right:0px;bottom:0px;left:0px}#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#2c3e50;position:absolute;height:100%;top:0px;right:0px;bottom:0px;left:0px}canvas{position:absolute;height:100%;top:0px;right:0px;bottom:0px;left:0px}