<nav class="navbar navbar-expand bg-transparent">
  <div class="container-fluid">
    <div class="navbar-nav ms-auto">
      <a class="nav-link px-3" *ngFor="let nav of navs; let i = index"
        [class.active]="selectedIndex === i"
        (click)="setIndex(i)"
        routerLink="/{{nav.toLowerCase( )}}">{{nav}}</a>
    </div>
  </div>
</nav>
<router-outlet></router-outlet>