Center buttons in footerbar


I have two buttons in my footer bar which I want to display in center with a space between the two buttons.

  <ion-toolbar text-center="">
            <button ion-button (click)="goTo('0')">
              <ion-icon name="home"></ion-icon>
            <button ion-button (click)="goTo('1')">
              <ion-icon name="star-outline"></ion-icon>

But how can I make a space between the buttons because on the device it is not easy to pick the right button.