body {
    font-family: sans-serif;
    background-color: #f0f0f0;
    color: #333;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

#container {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 600px;
}

h1 {
    color: #0056b3;
}

#output a {
    display: block;
    padding: 10px;
    margin-top: 10px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    text-align: center;
}

#output a:hover {
    background-color: #0056b3;
}