body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    text-align: center;
    padding: 50px;
}

.message {
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 20px;
    max-width: 400px;
    margin: 0 auto;
}

.success-message {
    color: #4CAF50;
}

.error-message {
    color: #F44336;
}