JSFiddle - React, Tailwind, and code Playground

HTML

<h1 id="newComer">am just using fiddle website to learn more exciting code and how to implement them</h1>
<h1>don't change the color</h1>

CSS

h1#newComer{
  color: red;
  font-weight: bold;
  font-style: italic;
  font-size: 20px;
  text-align: center;
}

JavaScript

window.addEvent('domready', function(){
	$('newComer').addClasss('selected');
});