Accident.Web/src/app/shell/shell.component.html

<div class="shell">
  <nav class="tab-bar">
    <a routerLink="mapView" routerLinkActive="active" class="tab">Map View</a>
    <a routerLink="mapAnalytics" routerLinkActive="active" class="tab">Map Analytics</a>
    <a routerLink="report" routerLinkActive="active" class="tab">Report Preview</a>
    <button type="button" class="logout" (click)="logOut()">Log out</button>
  </nav>

  <main class="content">
    <router-outlet />
  </main>
</div>