JSFiddle - React, Tailwind, and code Playground

HTML

<div id="img1" class="img1"> </div>

CSS

.img1 {
    background-image: url('http://blogmedia.jaludo.com/titter/wp-content/uploads/2012/05/random_picture6.jpg');
    background-position:center;
    background-repeat:no-repeat;
    background-size:cover; 
    display: none;
}
html, body, .img1 {
    height: 200px;
    width: 200px;
}

JavaScript

$(function() {
    $("#img1").fadeIn(1000);
});