JSFiddle - React, Tailwind, and code Playground

HTML

<div class="div1"></div>

CSS

.div1 {
    background:url("http://lorempixel.com/output/business-q-c-640-480-10.jpg");
    background-size:cover;
    height:200px;
    width:600px;
}

.div1:hover {
    background:red;
    transition: 3s;
}