text: let acc = document.getElementsByClassName("accordion");
  
  for (let i = 0; i < acc.length; i++) {
      acc[i].onclick = function () {
          this.classList.toggle("active");
  
          let panel = this.nextElementSibling;
  
          if (panel.style.maxHeight) {
              panel.style.maxHeight = null;
          } else {
              panel.style.maxHeight = panel.scrollHeight + "px";
          }
      }
      
  }