JSFiddle - React, Tailwind, and code Playground

HTML

<div class="box"></div>
<div class="box2"></div>

CSS

.box {
    height: 100px;
    width: 100px;
    background-color: green;
    display: none;
}

.box2 {
    width: 100px;
    height: 50px;
    background-color: red;
    display: none;
    margin-top: 20px;
}

JavaScript

$(document).ready(function() {
    $('.box').slideDown(2000, 'easeOutBounce', function() {
       $('.box2').fadeIn('slow');
    });
});