IONIC 4: Scroll div inside segment

Hi again! I want to make a scrollable div inside just one segment.

<div [ngSwitch]="abas">
	<div class="fundo">

		<div *ngSwitchCase="'salvas'" id="salvasId">

                  <!-- Scroll content -->

		</div>

               <div *ngSwitchCase="'final'" id="final">

		</div>

         </div>
</div>

Since ion-scroll is no longer used, how can I do this? Thanks!