JSFiddle - React, Tailwind, and code Playground

HTML

<li><a class="dropdown" href="#">Gallery</a>
        <ul class="dropdown-content">
            <li><a  href="#">Photos on me</a></li>
            <li><a  href="#">Photos of me</a></li>
            <li><a  href="#">Photos with me</a></li>
        </ul>
    </li>
    <li><a class="dropdown" href="#">Blog</a>
        <ul class="dropdown-content">
            <li><a  href="#">Photos on me</a></li>
            <li><a  href="#">Photos of me</a></li>
            <li><a  href="#">Photos with me</a></li>
        </ul>
    </li>

JavaScript

$('.dropdown').click(function(){
    $(this).next().toggle(200);
});