.img-loader {
    background: linear-gradient(120deg, #f5f5f5 30%, #ffffff 50%, #f5f5f5 70%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 100% 50% }
    100% { background-position: -100% 50% }
}