Try it live:
But not much to say...
<button class="btn btn-primary" (click)="opened = true">Show modal</button>
<clr-modal [(clrModalOpen)]="opened">
<h3 class="modal-title">I have a nice title</h3>
<div class="modal-body">
<p>But not much to say...</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-outline" (click)="opened = false">Cancel</button>
<button type="button" class="btn btn-primary" (click)="opened = false">Ok</button>
</div>
</clr-modal>