.product-deal-image img {
    -webkit-animation: dealImage 2s linear infinite alternate both;
    animation: dealImage 2s linear infinite alternate both
}



@-webkit-keyframes dealImage {
    0% {
        -webkit-transform: translateY(0);
        transform: translateY(0)
    }
    100% {
        -webkit-transform: translateY(-40px);
        transform: translateY(-40px)
    }
}