body { margin: 0; font-family: Arial, sans-serif; }
header { background: darkgreen; color: white; text-align: center; padding: 20px; }
nav { background: #333; padding: 10px; text-align: center; }
nav a { color: white; margin: 0 15px; text-decoration: none; }
nav a:hover { text-decoration: underline; }
section { padding: 20px; text-align: center; }
.gallery { display: flex; flex-wrap: wrap; justify-content: center; gap: 20px; }
.gallery-item { width: 300px; border: 1px solid #ddd; border-radius: 8px; overflow: hidden; }
.gallery-item img { width: 100%; height: auto; }
footer { background: #333; color: white; text-align: center; padding: 10px; margin-top: 20px; }