JSFiddle - React, Tailwind, and code Playground

HTML

<div class='category_info'>
    <div class='description'>
        <p>asdf</p>
    </div>
</div>

<div id="wrapper">
    <div class='category_info'>
        <div class='description'>
            <p>can't touch this</p>
        </div>
    </div>
</div>

JavaScript

var numberOfSelectedElements = $("body").find('> .category_info > .description > p').length;

alert("Selected " + numberOfSelectedElements + " element!");