#spinner {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.224);
    z-index: 9999;
    /* acima de tudo */
    pointer-events: all;
    /* impede cliques abaixo */
}

#spinner::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    margin: -40px 0 0 -40px;
    border: 16px solid #f3f3f3;
    border-top: 16px solid #C7081B;
    border-radius: 50%;
    animation: spin 2s linear infinite;
}

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

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