#divSuccessMessage {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #4CAF50; /* Green background */
    color: white; /* White text */
    padding: 15px 25px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    opacity: 0; /* Initially hidden */
    transition: opacity 0.5s ease-in-out;
}

#divSuccessMessage.visible {
    opacity: 1; /* Make it visible */
}

#divSuccessMessage.hidden {
    opacity: 0; /* Make it hidden */
}