.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #fff;
    border-top: 2px solid #3498DB;
    border-radius: 50%;
    margin-left: 6px;
    animation: spin 0.8s linear infinite;
    vertical-align: text-bottom;
}

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

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