body,html,#root{height:100%;margin:0}.demo{background-color:#000;width:300px;height:300px;border:5px solid white;text-align:center;display:flex;align-items:center;justify-content:center;font-family:sans-serif;font-size:24px;color:#fff;border-radius:50%;margin:auto;box-shadow:0 0 30px #00000080;transition:all .3s ease-in-out}.out-container{background-color:#0ff;height:100vh;display:flex;align-items:center;justify-content:center}