document.addEventListener("DOMContentLoaded", () => { let dropDownMenuElement = document.getElementById("dropDownMenu"); let dropDownMenuButtonElement = document.getElementById("dropDownMenuButton"); if (dropDownMenuButtonElement != null) { dropDownMenuButtonElement.addEventListener("click", () => { if (dropDownMenuElement.classList.contains("dropDownVisible")) { dropDownMenuElement.classList.remove("dropDownVisible"); } else { dropDownMenuElement.classList.add("dropDownVisible"); } }) } })