// dropdownlet main = document.querySelector("#mainList");let sub = document.querySelector("#subList");main.addEventListener("click",showSubList);let cnt = 0;function showSubList() { cnt++; if (cnt % 2 == 1) { sub.classList.remove("display_none"); } else { sub.classList.add("display_none"); }}// sliderlet btns = document.querySelectorAll("label");let slides = document.querySelectorAll(..
