Kenburns Effect on Sliders

/***** custom class : kenslider to the slider alb ******/

#top .kenslider .avia-slide-wrap img  {
    -webkit-animation: kenburns 8s ease-out infinite alternate-reverse both;
    animation: kenburns 8s ease-out infinite alternate-reverse both
}

@-webkit-keyframes kenburns {
    0% {
        -webkit-transform: scale(1) translate(0, 0);
        transform: scale(1) translate(0, 0);
        -webkit-transform-origin: 15% 85%;
        transform-origin: 15% 85%
    }
    100% {
        -webkit-transform: scale(1.1) translate(-20px, 15px);
        transform: scale(1.1) translate(-25px, 15px);
        -webkit-transform-origin: left bottom;
        transform-origin: left bottom
    }
}

@keyframes kenburns {
    0% {
        -webkit-transform: scale(1) translate(0, 0);
        transform: scale(1) translate(0, 0);
        -webkit-transform-origin: 15% 85%;
        transform-origin: 15% 85%
    }
    100% {
        -webkit-transform: scale(1.1) translate(-20px, 15px);
        transform: scale(1.1) translate(-25px, 15px);
        -webkit-transform-origin: left bottom;
        transform-origin: left bottom
    }
}