    <link type="text/css" rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/mmenu-js/9.3.0/mmenu.min.css" />
  

This is a demo.

Click the menu icon to open the menu.

    <!-- mmenu scripts -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/mmenu-js/9.3.0/mmenu.min.js"></script>
    <script>
        new Mmenu(document.querySelector("#menu"));

        document.addEventListener("click", function (evnt) {
            var anchor = evnt.target.closest('a[href="#/"]');
            if (anchor) {
                alert("Thank you for clicking, but that's a demo link.");
                evnt.preventDefault();
            }
        });
    </script>
  