JSFiddle - React, Tailwind, and code Playground

HTML

<div id="img"></div>

CSS

div#img { border:1px solid red; background-image:url(http://static3.wikia.nocookie.net/__cb20130516191344/mascotas/es/images/e/ea/PERROS.jpg); width:400px; height:300px; background-repeat:repeat-x; background-position:0px 0px; }

JavaScript

window.onload=function(){
    var div=document.getElementById("img");
    var pos=0;
    setInterval(function(){
        pos=(pos+3)%400;
        div.style.backgroundPosition=pos+"px 0px";
    },30);
}