body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    color: #333;
    text-align: center;
}

header {
    background: #222;
    color: white;
    padding: 15px;
    text-align: center;
}

header nav {
    margin-top: 10px;
}

header a {
    color: white;
    text-decoration: none;
    margin: 0 10px;
}

header a:hover {
    text-decoration: underline;
}
.section {
    padding: 80px 20px;
}
.gallery img {
    width: 100%;
    max-width: 600px;
    margin: 20px 0;
}
footer {
    padding: 30px;
    background-color: #fff;
}