Html
<nav class="navbar md:flex justify-between items-center p-4 shadow">
<a class="navbar-brand mr-5 bg-black text-white p-1" href="#">LOGO</a>
<button class="menu_btn inline-block md:hidden"> <i class="fa fa-bars"></i></button>
<div class="collapse_div md:flex w-full hidden md:block">
<!-- Links -->
<ul class="navbar-nav md:flex ml-auto">
<li class="nav-item">
<a class="nav-link mr-2" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link mr-2" href="#">About</a>
</li>
<li class="nav-item">
<a class="nav-link mr-2" href="#">Contact</a>
</li>
<li class="nav-item">
<a class="nav-link mr-2" href="#">Services</a>
</li>
</ul>
</div>
</nav>
Include Some Js
<script src="jquery.min.js"></script> <script src="popper.min.js"></script> <script src="bootstrap.min.js"></script>
Custom Jquery Code
$(document).ready(function () {
$(".menu_btn").on('click', function (e) {
$(".collapse_div").slideToggle(400);
});
});