I would like when the customer clicked on the input "Código de Segurança * *" the card would call the class that rotates it to the back "black"

<div class="col-lg-3">
<label for="codSeg">Código de Segurança<span class="text-danger"> *</span></label>
<input maxlength="4"  name="cvv" #cvvCard formControlName="digiCVV" id="codSeg" 
class="form-control w-50" type="text" [ngClass]="{'back  flip': (!cvvCard.value)}" 
(click)="changeCVV()" >
</div>

Image