body {
    font-family: Arial, sans-serif;
    margin: 0;
}

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

nav a {
    color: white;
    margin-right: 15px;
    text-decoration: none;
}

nav a:hover {
    color: yellow;
}

main {
    padding: 20px;
}

.gallery img {
    margin: 10px;
    border-radius: 10px;
    width: 200px;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
    position: fixed;
    width: 100%;
    bottom: 0;
}
iframe {
    margin: 10px;
    border-radius: 10px;
}