JSFiddle - React, Tailwind, and code Playground

CSS

body {
    background: url(http://savenkov.lvk.cs.msu.su/tourizm/trips/2006/pamiro-alai/panoramas/panorama14.jpg) repeat-x 0 0;
}

JavaScript

var i = 0;
function myFunc(){
    document.body.style.backgroundPosition = i+'px 0';
    i++;
}


setInterval(myFunc, 100);