JSFiddle - React, Tailwind, and code Playground

HTML

<input name="test" class="test" type="button" />

CSS

.test {
    background: url(http://i44.tinypic.com/16ibayt.png) left;
    width: 50px;
    height: 50px;
    border: none;
    transition: background 0.5s;
}

.test:hover {
    background: url(http://i44.tinypic.com/16ibayt.png) right;
}