JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-3.4.1.slim.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/simplebar/5.3.0/simplebar.min.js"></script>
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/simplebar/5.3.0/simplebar.css">
<div class="simple-bar">
	<h2>Scroll me!</h2>
	<p>Some more content</p>
	<p class="odd">Some content</p>
	<p>Some more content</p>
	<p class="odd">Some content</p>
	<p>Some more content</p>
	<p class="odd">Some content</p>
	<p>Some more content</p>
	<p class="odd">Scroll me!</p>
	<p>Some more content</p>
	<p class="odd">Some content</p>
	<p>Some more content</p>
	<p class="odd">Some content</p>
	<p>Some more content</p>
	<p class="odd">Some content</p>
	<p>Some more content</p>
	<p class="odd">Scroll me!</p>
	<p>Some more content</p>
	<p class="odd">Some content</p>
	<p>Some more content</p>
	<p class="odd">Some content</p>
	<p>Some more content</p>
	<p class="odd">Some content</p>
	<p>Some more content</p>
	<p class="odd">Some content</p>
	<p>Some more content</p>
	<p class="odd">Some content</p>
	<p>Some more content</p>
	hey!
</div>

CSS

.simple-bar {
	border: 1px solid grey;
	width: 50%;
	max-height: 200px;
	min-height: 100px;
	margin: 50px auto;
}

JavaScript

$('.simple-bar').each(element, new SimpleBar());