JSFiddle - React, Tailwind, and code Playground

HTML

<img alt="Follow me on Facebook">

CSS

img {
    height:100px;
    width:100px;
    background-image:url('http://i58.tinypic.com/2j0yqfn.jpg');
	background-size:100px 100px;
	background-repeat:no-repeat;
}

img:hover {
    background-image:url('http://i62.tinypic.com/2guywih.jpg');
}