.invalid{border-color:red!important}#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#000}nav{padding:30px}nav a{font-weight:700;color:#665e5e!important}nav a.router-link-exact-active{color:#fff!important}