*{margin:0;padding:0;box-sizing:border-box}body{margin:0;padding:0;overflow:hidden;background-color:#000}#app{display:block;width:100vw;height:100vh}canvas{-webkit-user-select:none;user-select:none;-webkit-user-drag:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;touch-action:none}