ionic: Buttons

<button
 // (click)="onClick()"
// [navPush]="yourPage"
  ion-button
// color="primary"
// outline | clear | round
// block (from inline element to block element)
// small | medium | large
// icon-only
// icon-left | icon-right
>
Button name
// <ion-icon name="icon-name"></ion-icon>
</button>