datasurvey/src/main/webapp/app/layouts/main/main.component.html

<!-- Guest (not logged in) -->
<ng-template [ngIf]="!isAuthenticated()" [ngIfElse]="authenticated">
  <div class="" style="overflow-x: hidden">
    <router-outlet></router-outlet>
  </div>
</ng-template>

<!-- Authenticated (logged in) -->
<ng-template #authenticated>
  <div class="wrapper">
    <div class="sidebar" data-color="brown" data-active-color="yellow">
      <jhi-sidebar></jhi-sidebar>
    </div>
    <div class="main-panel" style="overflow-x: hidden">
      <jhi-navbar></jhi-navbar>
      <div class="p-5">
        <router-outlet></router-outlet>
      </div>
    </div>
  </div>
</ng-template>