body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f4;
    color: #333;
}

header, main, footer {
    max-width: 800px;
    margin: 0 auto;
}

h1, h2 {
    color: #007bff;
}

.download-button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
}

.download-button:hover {
    background-color: #0056b3;
}

ul {
    list-style-type: disc;
    padding-left: 20px;
}

footer {
    text-align: center;
    margin-top: 20px;
}