#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#2c3e50}nav{padding:30px}nav a{font-weight:700;color:#2c3e50}nav a.router-link-exact-active{color:#42b983}h1{color:orange}.btnReturn{left:10px}.btnReturn,.btnTheme{bottom:10px;position:fixed;z-index:9999}.btnSalir,.btnTheme{right:10px}.btnSalir{top:10px;position:fixed;z-index:9999}