JSFiddle - React, Tailwind, and code Playground

HTML

<button id="button-1" style="height: 50px; width: 50px; background: red;">Click Me!</button>
<div id="div-1" style="height: 400px; width: 400px; background: blue; visibility: hidden;"></div>

JavaScript

jQuery('#button-1').onClick(){
    jQuery('#div-1').fadeIn();
}