navbar and carousel added

navbar.js

@@ -0,0 +1,11 @@
+let overlay = document.querySelector(".menu_overlay");
+let open = document.querySelector(".fa-bars");
+let close = document.querySelector(".fa-times");
+
+open.addEventListener("click", () => {
+  overlay.style.transform = "translateY(0)";
+});
+
+close.addEventListener("click", () => {
+  overlay.style.transform = "translateY(-110%)";
+});