.spin {
    /*border: 16px solid #0042A4;
    border-radius: 50%;
    border-top: 16px solid #3775CF;
    border-right: 16px solid #619BEE;
    border-bottom: 16px solid #96BFF9;
    border-left: 16px solid #C9E0FF;
    width: 50px;
    height: 50px;*/
    -webkit-animation: spin 0.5s linear infinite;
    animation: spin 0.5s linear infinite;
}

@-webkit-keyframes spin {
    0% {
        -webkit-transform: rotate(0deg);
    }

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

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

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