Can someone assist me in making both mat-selects required? I'm not sure how to do it.
html code:
<!--Slider 1-->
<mat-form-field appearance="fill">
<mat-label>Departure From</mat-label>
<mat-select required>
<mat-option value="fiumicino">Fiumicino Airport</mat-option>
<mat-option value="ciampino">Ciampino Airport</mat-option>
<mat-option value="civitavecchia">Civitavecchia Port</mat-option>
<mat-option value="rome">Rome City</mat-option>
</mat-select>
</mat-form-field>
<!--Slider 2-->
<div class="slider">
<mat-form-field appearance="fill" required>
<mat-label>Arrival At</mat-label>
<mat-select formControlName='Arrival'>
<mat-option value="fiumicino">Ciampino Airport</mat-option>
<mat-option value="civitavecchia">Civitavecchia Port</mat-option>
<mat-option value="rome">Rome City</mat-option>
<mat-option value="fiumicino">Fiumicino Airport</mat-option>
</mat-select>
</mat-form-field>
</div>