text: var acc = document.getElementsByClassName("accordion");
          var i;
          
          for (i = 0; i < acc.length; i++) {
            acc[i].addEventListener("click", function() {
              this.classList.toggle("active");
              var panel = this.nextElementSibling;
              if (panel.style.display === "block") {
                panel.style.display = "none";
              } else {
                panel.style.display = "block";
              }
            });
          }