body{margin:0}#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#2c3e50}nav{background-color:#fff;position:absolute;top:0;left:0;right:0;line-height:60px;height:60px;align-items:center;border-bottom:1px solid lightgray}nav *{display:inline}nav li{border-radius:10px;border:1px solid lightgrey;cursor:pointer;margin:5px;padding:10px 20px}nav li:hover{border:1px solid black}nav ul{padding:0;width:50%;margin-left:auto;margin-right:auto}