.aposenvio {
    display: block;
    color: #ffffff;
    background-color: #4CAF50;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-size: 18px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}