JSFiddle - React, Tailwind, and code Playground

HTML

<html>
    <body>
        should say hello world below me<br><br>
    </body>
</html>

JavaScript

$(function() {
    var $newDiv = $('<div>', {
        css: {color: 'blue' },
        innerHTML: 'hello world'
    });
    
    $('body').append($newDiv);
});