.progress-spiner {
    width: 100%; 
    height: 100%;
    background: white;
    position: fixed;
    z-index: 99999;
    top: 0;
    opacity: 0.8;
}
.loading-spinner {
    width: 100%; 
    height: 100%;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-box-pack: center;
    -webkit-box-align: center;
}