<div class="materialContainer">
  <div class="materialItem" *ngFor="let materialItem of materialLists;index as i"
       [routerLink]="['/material',materialItem.itemId]">
    <div style="width: 90%;">
      <img src="{{'assets/images/mk-material/'+materialItem.itemId+'.png'}}" alt="" class="img-responsive">
    </div>
    <div class="title">{{materialItem.title}}</div>
  </div>
</div>
