.loader {
    border: 16px solid #f3f3f3; /* Light grey */
    border-top: 16px solid #FFA500; /* Blue */
    border-radius: 50%;
    margin: auto;
    width: 60px;
    height: 60px;
    animation: spin 2s linear infinite;
}
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

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