JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/js/select2.full.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/css/select2.min.css">
<select name="x1" id="x1" style="width: 20%">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
</select>

JavaScript

$(document).ready(function(){
	$("#x1").select2({
    	tags: true
    });
});