JSFiddle - React, Tailwind, and code Playground

HTML

<div id="cajafolio"></div>

CSS

#cajafolio{
    background-image:url(http://www.shersydesign.com/wp-content/uploads/2013/12/fondofolio.png);
    width:70%;
    background-repeat:no-repeat;
    box-shadow: 4px 4px 4px rgba(0,0,0,0.2);
    height:600px;
    margin-left:150px;
    background-position: 40% 20%; 
    transition-delay:2s;
}
#cajafolio:hover{
    background-position:bottom;
}