JSFiddle - React, Tailwind, and code Playground

HTML

<h3>click</h3>
<div>        
<table id="tbl">
            <tr>
                <td>1</td>
            </tr>
            <tr>
                <td>2</td>
            </tr>
            <tr>
                <td>3</td>
            </tr>
        </table>
</div>

JavaScript

$("h3").click(function () {
    $(this).next("div").slideToggle("slow");
});