<index-title [titles]="section.name"></index-title>
<div class="list">

  <ng-container *ngFor="let topic of topics; index as index">
    <ng-container *ngIf="section.cols * section.rows > index">

      <section class="cursor" [routerLink]="['topic', ids.get(index)]">
        <header>{{ topic.name }}</header>
        <main>
          <img [src]="topic.cover" />
        </main>
      </section>
    </ng-container>
  </ng-container>
  <section class="empty" *ngFor="let i of 5 | range"></section>
</div>
