html,body{margin:0;padding:0;overflow:hidden}.app{position:relative;width:100%;height:100vh;display:flex;justify-content:center;align-items:center;background-color:#000;position:fixed;top:0;left:0}video{max-width:100%;max-height:100%;object-fit:contain}.button-wrapper{position:absolute;bottom:8rem;left:50%;transform:translate(-50%);display:flex;gap:1rem}