/* Add custom Js styles below */ 
 <script>
  let t;
  function closePopup() {
    clearTimeout(t);
    document.getElementById('popup-overlay').classList.add('hidden');
  }
  function openPopup() {
    document.getElementById('popup-overlay').classList.remove('hidden');
    const bar = document.getElementById('timer-bar');
    bar.style.animation = 'none'; bar.offsetHeight;
    bar.style.animation = 'shrink 3s linear forwards';
    t = setTimeout(closePopup, 3000);
  }
  t = setTimeout(closePopup, 3000);
</script> */