JSFiddle - React, Tailwind, and code Playground

HTML

<div id="welcome">welcome</div>
<div id="content">content</div>
<div id="menu">menu</div>

CSS

div { display: none; border: 1px solid #000; }

JavaScript

$(document).ready(function() {
    $('#welcome').fadeIn(2000).delay(2000).fadeOut(2000);
    $('#content').delay(4000).fadeIn(2000);
    $('#menu').delay(6000).fadeIn(2000);
});