ttom-bar">
        <button class="button-prev" on="tap:AMP.pushState({ currentPage: currentPage - 1 })">back</button>
        <div class="step-dots">
          <i class="step-dot active"></i>
          <i class="step-dot active"></i>
          <i class="step-dot"></i>
        </div>
        <button on="tap:AMP.pushState({ currentPage: currentPage + 1 })"
                class="button-next"
                >next</button>
      </div>
    </section>
    <section hidden [hidden]="currentPage != 2"> 
      <div