JSFiddle - React, Tailwind, and code Playground

HTML

<div id="testdiv">
    <input type="text" id="txt" style="display:none;" />
</div>
<img src="http://photojournal.jpl.nasa.gov/jpeg/PIA15256.jpg" id="dummy" style="display:none;" alt="" />

CSS

#testdiv {
    background:#aaaaaa none no-repeat right top;
    width: 400px;
    height: 400px;
}

#txt{
    margin-left: 180px;
    margin-top: 140px;
}

JavaScript

$(function() {
    $('#dummy').ready(function() { 
        alert('loaded');
        $('#testdiv').css('background-image', 'url(http://photojournal.jpl.nasa.gov/jpeg/PIA15256.jpg)');
        $('#txt').show(1000);
    });
 });