html,body{margin:0;width:100%;height:100%;overflow:hidden;background:#000}body{font-family:sans-serif}#app{display:block;width:100vw;height:100vh}#control-panel{position:fixed;top:16px;right:16px;z-index:10}#control-panel .tp-dfwv{min-width:280px}pre{margin:0;padding:16px;color:#fff;background:#000}