body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
}

.container {
    max-width: 800px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #333;
}

p {
    text-align: center;
    color: #666;
}

.download-button {
    display: block;
    width: 200px;
    margin: 20px auto;
    padding: 10px 20px;
    background-color: #4CAF50;
    color: #fff;
    text-align: center;
    text-decoration: none;
    border-radius: 5px;
}

.download-button:hover {
    background-color: #45a049;
}

@media (max-width: 600px) {
    .container {
        width: 90%;
        margin: 30px auto;
        padding: 10px;
    }

    .download-button {
        width: 150px;
        padding: 8px 15px;
    }
}