body {
    font-family: Arial, sans-serif;
    margin: 2rem;
    max-width: 800px;
}

textarea {
    width: 100%;
    height: 300px;
    font-family: monospace;
    font-size: 14px;
    margin-bottom: 1rem;
}

button {
    padding: 0.5rem 1rem;
    font-size: 16px;
    cursor: pointer;
}

#message {
    margin-top: 1rem;
    color: green;
}