JSFiddle - React, Tailwind, and code Playground

HTML

<div class="hover">Hover</div>
<div id="portfolio">
    <a href="javascript:alert('hello world')"> Here's some stuff.Test</a>
</div>

CSS

#portfolio {background:#999; display:none;}

JavaScript

$('.hover').click(function(){
    $('#portfolio').show();
}, function(){
    $('#portfolio').hide();
});