JSFiddle - React, Tailwind, and code Playground

HTML

<button>click to toggle</button>
<p>show/hide</p>

CSS

p { -webkit-transition: height 0.2s linear; height:100px; overflow:hidden; background: red }
p.hide { height:0 }

JavaScript

$('button').click(function() {
    $('p').toggleClass('hide');
});