JSFiddle - React, Tailwind, and code Playground

HTML

<div>
      <p>div1 p1</p>
      <p>div1 p2</p>
      <p>div1 p3</p>
      <p>div1 p4</p>
</div>
<div>
      <p>div2 p1</p>
      <p>div2 p2</p>
      <p>div2 p3</p>
      <p>div2 p4</p>
</div>

JavaScript

$('div p:eq(2)').css('color','red');
$('div p:nth-child(2)').css('background-color','green');