JSFiddle - React, Tailwind, and code Playground

HTML

<textarea id="htmlcode" rows="4" cols="50">
&lt;strong>test&lt/strong>
</textarea>
<button>Demo</button>
<div id="result" 
     style="height: 200px; background-color: whitesmoke;"> 
</div>

JavaScript

$('button').click(function() {
  $('div').text($('textarea').val());
});