JSFiddle - React, Tailwind, and code Playground

by Ivin Raj S

HTML

<div id="page">
     
<p>
welcome
</p>
    
</div>
<div id="loading"></div>

CSS

h1 {
    font-size: 2em;
    margin-bottom: 0.2em;
    padding-bottom: 0;
}
p {
    font-size: 1.5em;
    margin-top: 0;
    padding-top: 0;
}
#page {
    display: none;
}
#loading {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 100;
    width: 100vw;
    height: 100vh;
    background-color: rgba(192, 192, 192, 0.5);
    background-image: url("http://i.stack.imgur.com/MnyxU.gif");
    background-repeat: no-repeat;
    background-position: center;
}

JavaScript

function onReady(callback) {
    var intervalID = window.setInterval(checkReady, 1000);

    function checkReady() {
        if (document.getElementsByTagName('body')[0] !== undefined) {
            window.clearInterval(intervalID);
            callback.call(this);
        }
    }
}

function show(id, value) {
    document.getElementById(id).style.display = value ? 'block' : 'none';
}

onReady(function () {
    show('page', true);
    show('loading', false);
});