Cards on tablet stretched

Ionic Framework ionic-v3
1

Hi,

I have the following

<ion-list [virtualScroll]="data" no-lines>
    <ion-item *virtualItem="let item">
        <ion-card tappable (click)="openItem(item)">
		</ion-card>
	</ion-item>
</ion-list>

everything works perfect in phone resolution cards are placed vertical on below the other. When I run on tablet the cards are stretched across the screen Insterad of placed horizontal?

How can I achieve such a result?

Thanks