JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li>Page 1</li>
    <li>Page 2
        <ul>
            <li>Subpage 1</li>
            <li>Subpage 2</li>
        </ul>
    </li>
    <li>
        Page 3
        <ul>
            <li>Subpage 1</li>
            <li>Subpage 2
                <ul>
                    <li>Subpage 1</li>
                    <li class="bad">Subpage 2 - make me red! </li>
                </ul>
            </li>
        </ul>
    </li>
</ul>

JavaScript

$('ul li').last().css('color', 'red');