.loader {
    width: 265px;
    height: 215px;
    display: block;
    margin: auto;
    position: relative;
    background: #FFF;
    box-sizing: border-box;
}
.loader::after {
    content: '';
    width: calc(100% - 30px);
    height: calc(100% - 30px);
    top: 15px;
    left: 15px;
    position: absolute;
    background-image: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5) 50%, transparent 100%),
    radial-gradient(circle 50px , #DDD 100%, transparent 0),
    linear-gradient(#DDD 16px, transparent 0),
    linear-gradient(#DDD 24px, transparent 0);
    background-repeat: no-repeat;
    background-size: 75px 175px, 100% 100px, 80% 16px, 80% 16px;
    background-position: -185px 0, center 10px, center 125px, center 155px;
    box-sizing: border-box;
    animation: animloader 1.5s linear infinite;
}

@keyframes animloader {
    to {
        background-position: 285px 0, center 10px, center 125px, center 155px;
    }
}