.loader {
    border: 10px solid #f3f3f3;
    border-radius: 50%;
    border-top: 10px solid #0275d8;
    width: 50px;
    height: 50px;
    -webkit-animation: spin 2s linear infinite; /* Safari */
    animation: spin 2s linear infinite;
}

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

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

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

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

/* Loading overlay */
#formLoaderOverlay {
    display: none;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.8);
    z-index: 1000;
}

#loadingSpinner {
    display: none;
    left: 50%;
    top: 50%;
    position: fixed;
    z-index: 1001;
}