body {
    font-family: Arial, sans-serif;
    background: #f2f2f2;
    padding: 20px;
}

input {
    margin: 5px;
    padding: 5px;
}

button {
    margin: 5px;
    padding: 5px 10px;
}

#saida {
    margin-top: 15px;
    background: white;
    padding: 10px;
    border: 1px solid #ccc;
    white-space: pre-line;
}