component-in-fixed.html

<div class="fixed-container">
  <p class="text-muted">This is a fixed container.</p>
  <p>
    <button class="btn btn-primary" (click)="exampleModal1.show()">Show Modal</button>
  </p>

  <ng-template nzbModal #exampleModal1="nzbModal">
    <div class="modal fade" tabindex="-1">
      <div class="modal-dialog" role="document">
        <div class="modal-content">
          <div class="modal-header">
            <h5 class="modal-title">Modal title</h5>
            <button type="button" class="close" data-dismiss="modal" aria-label="Close">
              <span aria-hidden="true">&times;</span>
            </button>
          </div>
          <div class="modal-body">
            <p>
              Time from containing component:
              {{date.toLocaleTimeString()}}
            </p>
          </div>
          <div class="modal-footer">
            <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
          </div>
        </div>
      </div>
    </div>
  </ng-template>

</div>