JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-3.6.4.js"></script>
<h1 class="title">Make me green</h1>
<p class="para">Make me red</p>
<p class="para">Me red too</p>
<p class="para">Also me</p>

JavaScript

$(".para").css("color", "red");
$(".title").css("color", "green");