.dw-loading-mask {
    position: absolute;
    z-index: 2000;
    background-color: rgba(255, 255, 255, .9);
    margin: 0;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    transition: opacity .3s;
}
.dw-loading-spinner {
    top: 50%;
    margin-top: calc((0px - 200px) / 2);
    width: 100%;
    text-align: center;
    position: absolute;
}
.dw-loading-spinner .circular {
    display: inline;
    height: 50px;
    width: 50px;
    animation: loading-rotate 2s linear infinite;
}
.dw-loading-spinner .dw-loading-text {
    color: #409eff;
    margin: 3px 0;
    font-size: 14px;
}