JSFiddle - React, Tailwind, and code Playground

HTML

<div class="hidden">
This is a simple hidden div.
</div>

<a href="#" id="show">Show Div</a>

CSS

.hidden {
    position: absolute;
    top:45%;
    left:35%;
    padding:10px;
    background: #ddd;
    color:#333;
    display:none;
}

JavaScript

$(document).ready(function(){
    $('#show').click(function(){
        $('.hidden').fadeIn();
    });
});