JSFiddle - React, Tailwind, and code Playground

HTML

<!-- jquery -->
<script src="https://code.jquery.com/jquery-3.7.1.js"integrity="sha256-eKhayi8LEQwp4NKxN+CfCh+3qOVUtJn3QNZ0TciWLP4=" crossorigin="anonymous"></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

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