#rds-spinner {
    display: none;
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0,0,0,0.1);    
    z-index: 9998;
}

#rds-spinner.active {
    display: block;
}

#rds-spinner.active #rds-spinner-loader {
    width: 48px;
    height: 48px;
    border: 5px solid #818181;
    border-bottom-color: transparent;
    border-radius: 50%;
    display: inline-block;
    position: absolute;
    top: 50%;
    left: 50%;    
    box-sizing: border-box;
    animation: rotation 1s linear infinite;

    @keyframes rotation {
        0% {
            transform: rotate(0deg);
        }
        100% {
            transform: rotate(360deg);
        }
    }     
}