<template>
    <span class="loader"></span>
</template>
<style scoped>
.loader {
    width: 200px;
    height: 140px;
    background: #979794;
    box-sizing: border-box;
    position: relative;
    border-radius: 8px;
    perspective: 1000px;
}

.loader:before {
    content: '';
    position: absolute;
    left: 10px;
    right: 10px;
    top: 10px;
    bottom: 10px;
    border-radius: 8px;
    background: #f5f5f5 no-repeat;
    background-size: 60px 10px;
    background-image: linear-gradient(#ddd 100px, transparent 0),
        linear-gradient(#ddd 100px, transparent 0),
        linear-gradient(#ddd 100px, transparent 0),
        linear-gradient(#ddd 100px, transparent 0),
        linear-gradient(#ddd 100px, transparent 0),
        linear-gradient(#ddd 100px, transparent 0);

    background-position: 15px 30px, 15px 60px, 15px 90px,
        105px 30px, 105px 60px, 105px 90px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
}

.loader:after {
    content: '';
    position: absolute;
    width: calc(50% - 10px);
    right: 10px;
    top: 10px;
    bottom: 10px;
    border-radius: 8px;
    background: #fff no-repeat;
    background-size: 60px 10px;
    background-image: linear-gradient(#ddd 100px, transparent 0),
        linear-gradient(#ddd 100px, transparent 0),
        linear-gradient(#ddd 100px, transparent 0);
    background-position: 50% 30px, 50% 60px, 50% 90px;
    transform: rotateY(0deg);
    transform-origin: left center;
    animation: paging 1s linear infinite;
}


@keyframes paging {
    to {
        transform: rotateY(-180deg);
    }
}
</style>