JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>

<ul id="navigation">
  <li>Test-1</li>
  <li>Test-2</li>
  <li>Test-3</li>
</ul>

JavaScript

$(document).ready(function() {
  $('#navigation li').hover(function() {
  		$(this).slideUp(200);
  },
  function(){
      $(this).slideDown(200);
  });
});