JSFiddle - React, Tailwind, and code Playground

HTML

<dl>
        <dt><label>title</label></dt>
        <dd><button onclick="$('#area').slideToggle('slow');">click me</button>
            <fieldset id="area">
                <dl>
                    <dt><label>field:</label></dt>
                    <dd><input type="text"></dd>
                </dl>
            </fieldset>
    </dl>

CSS

fieldset {overflow: hidden}