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

header {
    text-align: center;
    background-color: #333;
    color: white;
    padding: 15px;
}

nav {
    text-align: center;
    margin: 15px;
}

nav a {
    margin: 10px;
    text-decoration: none;
    color: #333;
    font-weight: bold;
}

nav a:hover {
    color: darkred;
}

section {
    background: white;
    padding: 20px;
    border-radius: 10px;
}

img {
    width: 300px;
    display: block;
    margin: 10px auto;
    border: 3px solid #333;
}

footer {
    text-align: center;
    margin-top: 20px;
    font-size: 12px;
}