html,html body{height:100%}html body{margin:0}#app{height:100%;font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#2c3e50}#nav{position:fixed;bottom:0;left:0;height:6rem;width:100%;box-shadow:0 0 15px -7px #999;display:flex;align-items:center;justify-content:space-around;color:#999}#nav .active{color:#6495ed}#nav .iconfont{font-size:3rem}#nav .nav-title{font-size:1.4rem}