#shadow-loading {
    display: block;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0,0,0,.7);
    z-index: 7001;
}

.shadow-loading-window .center {
    position: absolute;
    top: 45%;
    margin: 0 calc(50% - 100px);
    width: 200px;
    text-align: center;
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
}

.shadow-loading-window .loader {
    width: 48px;
    height: 48px;
    border: 5px solid #FFF;
    border-bottom-color: transparent;
    border-radius: 50%;
    display: inline-block;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
}
.shadow-loading-window .text {
    margin-top: 20px;
    font-weight: bold;
    color: #fff;
}

@keyframes rotation {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}