.loader {
    position: fixed;
    top: 50%;
    left: 50%;
    display: none;
    width: 50px;
    height: 50px;
    border: 5px solid #ccc;
    border-radius: 50%;
    border-top-color: #3498db;
    z-index: 10;
    animation: spin 1s ease-in-out infinite;
    /* Animation */
}

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

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