body { font-family: 'Arial', sans-serif; background-color: #f4f4f4; color: #333; } header { background: #007bff; color: white; padding: 10px 0; } nav ul { list-style: none; padding: 0; } nav ul li { display: inline; margin-right: 20px; } .hero { text-align: center; padding: 20px; } img { max-width: 100%; height: auto; } footer { text-align: center; padding: 10px; }