JSFiddle - React, Tailwind, and code Playground

HTML

<body onload="testFunction()">
    
<div id="txt"> Loading </div>

<script>
function testFunction() {
    setTimeout(function(){document.getElementById("txt").innerHTML = "";}, 2000);
}
</script>

</body>

CSS

#txt{
    width: 100px;
    height: 100px;
    position: absoulut;
    margin-left: auto;
    margin-right: auto;
    margin-top: 50%;
}