JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<nav>
  <div class="handle">Menu</div>
  <ul class="navigation">
    <li><a href="#">Home</a></li>
    <li><a href="#">About</a></li>
    <li><a href="#">Service</a></li>
    <li><a href="#">Contact</a></li>
  </ul>
</nav>

CSS

nav ul {
  background-color: #43a286;
  overflow: hidden;
  color: white;
  padding: 0;
  text-align: center;
  margin: 0;
}
nav ul li:hover {
  background-color: #399077;
  transition: 0.5s;
}
nav ul li {
  display: inline-block;
}
nav ul li a {
  display: block;
  padding: 20px;
  color: #fff;
}
.handle {
  width: 100%;
  background: #005c48;
  text-align: left;
  box-sizing: border-box;
  padding: 15px;
  color: white;
  display: none;
}
.handle i {
  float: right;
  cursor: pointer;
}
@media screen and (max-width: 400px) {
  nav ul li {
    box-sizing: border-box;
    width: 100%;
    display: block;
    text-align: left;
    box-shadow: 1px 1px #399077;
  }
  nav ul li a {
    padding: 15px;
  }
  .handle {
    display: block;
  }
}

JavaScript

$(document).ready(mobileNav);
$(window).on('resize', mobileNav);

function mobileNav() {
  var handle = $(".handle");
  var navigation = $(".navigation");
  if (window.innerWidth <= 400) {
    navigation.hide();
  } else {
    navigation.show();
  }
  handle.unbind().click(function() {
    navigation.slideToggle();
  });
}