*{margin:0;padding:0;box-sizing:border-box;font-family:sans-serif}html,body{height:100vh}body{overflow:hidden;display:flex;justify-content:center;align-items:center;padding:20px;background-color:#000}#app{font-size:25px;background-color:#1a1a1a;padding:20px 25px;border-radius:15px;color:#fafafa}