*{font-family:sans-serif;margin:0;padding:0}body{height:100vh;overflow:hidden;position:relative;width:100vw}#app{align-items:center;display:flex;height:100%;justify-content:center;position:relative;width:100%}#loader{align-items:center;background-color:#eee;display:flex;height:100%;justify-content:center;left:0;position:absolute;top:0;width:100%}