Edit in JSFiddle

div{
    height: 300px;
    background-image: url(http://primula.l4os.ru/wp-content/uploads/2014/01/home-slider1.jpg);
    background-position: 0px 0px;
    background-repeat: repeat-x;
    
    animation: animatedBackground 20s linear infinite;
    -ms-animation: animatedBackground 20s linear infinite;
    -moz-animation: animatedBackground 20s linear infinite;
    -webkit-animation: animatedBackground 20s linear infinite;
}



@keyframes animatedBackground {
	from { background-position: 0 0; }
	to { background-position: 100% 0; }
}
@-webkit-keyframes animatedBackground {
	from { background-position: 0 0; }
	to { background-position: 100% 0; }
}
@-ms-keyframes animatedBackground {
	from { background-position: 0 0; }
	to { background-position: 100% 0; }
}
@-moz-keyframes animatedBackground {
	from { background-position: 0 0; }
	to { background-position: 100% 0; }
}