app.component.html

<ng-progress [meteor]="true" [thick]="true" color="#007bff" aria-hidden="true"></ng-progress>

<app-navbar></app-navbar>
<main class="main_container app-{{themeID}}-theme">
  <router-outlet></router-outlet>
</main>
<app-contact></app-contact>
<app-footer></app-footer>