.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.5s ease-in-out;
}

.preloader .loader {
    display: inline-block;
    width: 80px;
    height: 80px;
    border: 10px solid #ccc;
    border-top-color: #1e8c16;
    border-radius: 50%;
    animation: spin 1s ease-in-out infinite;
}

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

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