JSFiddle - React, Tailwind, and code Playground

HTML

<div class="item">
    <div class="inner">
    <img src="http://s.glbimg.com/en/hm/f/original/2011/03/16/predio.jpg" />
    </div>
</div>

CSS

.inner {
 position: relative;
 width: 144px;
 height: 132px;   
}

JavaScript

$(".item").fadeTo("fast", "0.3");