body {
    font-family: Arial, sans-serif;
    padding: 20px;
    text-align: center;
}

#result {
    margin-top: 20px;
    font-size: 1.3em;
}

button {
    margin-top: 30px;
    padding: 10px 20px;
    font-size: 1.1em;
    cursor: pointer;
}