*{margin:0;padding:0;box-sizing:border-box}html,body,#app{width:100vw;height:100vh;overflow:hidden}.container{position:absolute;left:0;top:0;display:flex;flex-direction:column;gap:16px;padding:16px}.button{border-radius:4px;background-color:#f0f8ff;border:1px solid black;padding:8px 16px;cursor:pointer;text-align:center}