how to write ionic components code example

Example: ionic card

<ion-card>
  <ion-card-header>
    <ion-card-subtitle>Card Subtitle</ion-card-subtitle>
    <ion-card-title>Card Title</ion-card-title>
  </ion-card-header>

  <ion-card-content>
    Keep close to Nature's heart... and break clear away, once in awhile,
    and climb a mountain or spend a week in the woods. Wash your spirit clean.
  </ion-card-content>
</ion-card>

<ion-card>
  <ion-item>
    <ion-icon name="pin" slot="start"></ion-icon>
    <ion-label>ion-item in a card, icon left, button right</ion-label>
    <ion-button fill="outline" slot="end">View</ion-button>
  </ion-item>

  <ion-card-content>
    This is content, without any paragraph or header tags,
    within an ion-card-content element.
  </ion-card-content>
</ion-card>

<ion-card>
  <ion-item href="#" class="ion-activated">
    <ion-icon name="wifi" slot="start"></ion-icon>
    <ion-label>Card Link Item 1 activated</ion-label>
  </ion-item>

  <ion-item href="#">
    <ion-icon name="wine" slot="start"></ion-icon>
    <ion-label>Card Link Item 2</ion-label>
  </ion-item>

  <ion-item class="ion-activated">
    <ion-icon name="warning" slot="start"></ion-icon>
    <ion-label>Card Button Item 1 activated</ion-label>
  </ion-item>

  <ion-item>
    <ion-icon name="walk" slot="start"></ion-icon>
    <ion-label>Card Button Item 2</ion-label>
  </ion-item>
</ion-card>