JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/select2/4.0.1/css/select2.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/select2/4.0.1/js/select2.min.js"></script>
<select name="test" id="test">
  <option value="1">one</option>
  <option value="2">two</option>
  <option value="3">three</option>
  <option value="4">four</option>
  <option value="5">five</option>
</select>

CSS

#test {
  width: 200px;
}

JavaScript

$("#test").select2();