body {
    font-family: Arial, sans-serif;
    background: #f0f0f0;
    padding: 40px;
    text-align: center;
}

h1 {
    color: #2c3e50;
}

#mensaje {
    background: #27ae60;
    color: white;
    padding: 10px;
    margin: 20px auto;
    max-width: 300px;
    border-radius: 5px;
}

img {
    max-width: 200px;
    border: 2px solid #2c3e50;
    margin-top: 20px;
}