PeerTube/client/src/app/+admin/admin.component.html

<div class="row">
  <div class="sub-menu">
    <ng-template #linkTemplate let-item="item">
      <a [routerLink]="item.routerLink" routerLinkActive="active" class="title-page title-page-settings">{{ item.label }}</a>
    </ng-template>

    <list-overflow [items]="items" [itemTemplate]="linkTemplate"></list-overflow>
  </div>

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