n-accordion-group {
        width: 300px;
      }
    </style>
  </head>

  <body>
    <ion-app>
      <ion-content>
        <div class="container">
          <ion-accordion-group readonly="true">
            <ion-accordion value="first">
              <ion-item slot="header" color="light">
                <ion-label>First Accordion</ion-label>
              </ion-item>
              <div class="ion-padding" slot="content">First Content</div>
            </ion-accordion>
            <ion-accordion value="se