     on="tap:AMP.pushState({ currentStep: 2 })">
      <i class="step-incomplete" 
         [class]="fruitSelected ? 'step-complete' : 'step-incomplete'" data-step-nr="3"></i>
         Fruit
    </button>
    <section hidden [hidden]="currentStep != 2"> 
      <div class="content">
        <p>What's your favorite fruit?</p>
        <amp-selector on="select:AMP.setState({fruitSelected: true})" class="poll" name="fruit-poll">
          <div option="apple">Apple</div>
          <div option="banana">Banana</div