JSFiddle - React, Tailwind, and code Playground

HTML

<div id="button">Button</div>
<div id="show">That button though</div>

CSS

#button {
    border: 1px solid black;
    cursor: pointer;
}

#show {
    border: 1px solid black;
    opacity: 0;

JavaScript

$("#button").click(function() {
				$("#show").animate({
					opacity: 1
				}, 500 );
			});