JSFiddle - React, Tailwind, and code Playground

HTML

<div class="test"></div>

CSS

.test {
    width:300px;
    height:300px;
    background-position:50px 50px;
    background-image: url(http://o.onionstatic.com/images/7/7954/original/700.hq.jpg?3818);
    background-size: 30% 30%;
    background-repeat: no-repeat;
    border:1px solid black;
}

JavaScript

/**
 * @author Alexander Farkas
 * v. 1.02
 *
 * Edited by Nelson Wells for jQuery 1.8 compatibility
 */
(function($) {
    $.extend($.fx.step,{
        backgroundPosition: function(fx) {
            if (fx.pos === 0 && typeof fx.end == 'string') {
                var start = $.css(fx.elem,'backgroundPosition');
                start = toArray(start);
                fx.start = [start[0],start[2]];
                var end = toArray(fx.end);
                fx.end = [end[0],end[2]];
                fx.unit = [end[1],end[3]];
            }
            var nowPosX = [];
            nowPosX[0] = ((fx.end[0] - fx.start[0]) * fx.pos) + fx.start[0] + fx.unit[0];
            nowPosX[1] = ((fx.end[1] - fx.start[1]) * fx.pos) + fx.start[1] + fx.unit[1];
            fx.elem.style.backgroundPosition = nowPosX[0]+' '+nowPosX[1];

            function toArray(strg){
                strg = strg.replace(/left|top/g,'0px');
                strg = strg.replace(/right|bottom/g,'100%');
                strg = strg.replace(/([0-9\.]+)(\s|\)|$)/g,"$1px$2");
                var res = strg.match(/(-?[0-9\.]+)(px|\%|em|pt)\s(-?[0-9\.]+)(px|\%|em|pt)/);
                return [parseFloat(res[1],10),res[2],parseFloat(res[3],10),res[4]];
            }
        }
    });
})(jQuery);

$('.test').animate({
  'background-position-x': '100px',
  'background-position-y': '200px',
   backgroundPosition:"+100px 200px"
}, 400, 'linear');