<script>
 const niasmenu =document.querySelector(".niasmenu");
const frontmenu = document.querySelector(".frontmenu");
const closemenu = document.querySelector(".closemenu");

niasmenu.onclick  = () => {
                frontmenu.classList.add("active");

}
closemenu.onclick  = () => {
                frontmenu.classList.remove("active");
				
}
</script>