JSFiddle - React, Tailwind, and code Playground

HTML

<div class="slideDown">What a deal!</div>
<span class="grabPromo">Grab This Deal</span>

CSS

.slideDown { background:#ace; display: none; }
.grabPromo { cursor:pointer; }

JavaScript

$('.grabPromo').click(function(e){
    $('.slideDown').slideToggle();
});