body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    padding: 20px;
    background-color: #f4f4f4;
}

header, footer {
    text-align: center;
    margin-bottom: 30px;
}

h1, h2 {
    color: #333;
}

section {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

footer {
    font-size: 0.9em;
    color: #777;
}

ul {
    margin-left: 20px;
}

a {
    color: #0077cc;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}