#age-calculator {
    max-width: 400px;
    margin: 20px auto;
    padding: 20px;
    border-radius: 10px;
    background: #f9f9f9;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    font-family: Arial, sans-serif;
}
#dob {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
}
#calculate-age {
    padding: 10px 20px;
    background: #0073aa;
    color: white;
    border: none;
    cursor: pointer;
}
#calculate-age:hover {
    background: #005f8d;
}
#age-result {
    margin-top: 15px;
    font-size: 16px;
    color: #333;
}