#loader {
    display: none;
    border: 6px solid #f3f3f3;
    /* Light grey */
    border-top: 6px solid #000000;
    /* Blue */
    border-radius: 50%;
    width: 40px;
    height: 40px;
    -webkit-animation: spin 2s linear infinite;
    /* Safari */
    animation: spin 1s linear infinite;
}

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


/* Safari */

@-webkit-keyframes spin {
    0% {
        -webkit-transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
    }
}