annel="a1" data-target="none">assertions button</button>
    <button id="long-attr" style="color: red; border: 1px solid blue; border-radius: 100px; z-index: 1; background-color: green;">long attr</button>
    <button class="assertion-submit">submit</button>
    <span id="success-message" style="display: none">action success!</span>
    <script>
      const btn1 = document.getElementsByClassName('interactive')[0]
      const btn2 = document.getElementsByClassName('interactive')[1]
      const btn3 = documen