.loader.loading {
    display: block;
}
.loader {
    display: none;
    margin: 16px auto;
    border: 8px solid #f3f3f3;
    border-top: 8px solid #3498db;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 2s linear infinite;
}
.video_product{
    text-align: center;
}