text: let accordion = document.getElementsByClassName("button-display-answer");
  let index;
  
  for (index = 0; index < accordion.length; index++) {
      accordion[index].addEventListener("click", function () {
          this.classList.toggle("activeButton");
          let panel = this.nextElementSibling;
          if (panel.style.display === "block") {
              panel.style.display = "none";
          } else {
              panel.style.display = "block";
          }
      });
  }