text {
        color: green;
      }
      .custom .error-text {
        color: purple;
      }
    </style>
  </head>

  <body>
    <ion-app>
      <ion-header>
        <ion-toolbar>
          <ion-title>Radio Group - Supporting Text</ion-title>
        </ion-toolbar>
      </ion-header>

      <ion-content id="content" class="ion-padding">
        <div class="grid">
          <div class="grid-item">
            <h2>No Supporting Text</h2>
            <ion-radio-group value="1">
              <ion-radio va