79. satır:
79. satır:
this.classList.toggle("active");
this.classList.toggle("active");
var content = this.nextElementSibling;
var content = this.nextElementSibling;
−
const arrow = this.previousSibling;
+
var arrow = this.previousElementSibling;
if (content.style.display === "block") {
if (content.style.display === "block") {
arrow.classList.remove("up")
arrow.classList.remove("up")