/* General styles */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #333;
    color: white;
    padding: 10px;
}

nav ul {
    list-style-type: none;
}

nav ul li {
    display: inline;
    margin-right: 10px;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
}

/* Responsive styles */
@media only screen and (max-width: 600px) {
    nav ul li {
        display: block;
        margin-bottom: 5px;
    }

    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}