body { font-family: Arial, sans-serif; margin: 0; padding: 0; background-color: #ffffcc; } .container { max-width: 800px; margin: 0 auto; padding: 20px; } header { text-align: center; background-color: #6699ff; padding: 20px; } header h1 { margin: 0; color: #ffffff; } nav ul { list-style-type: none; margin: 0; padding: 0; } nav ul li { display: inline; margin-right: 10px; } nav ul li a { text-decoration: none; color: #333333; } main { padding: 20px 0; } footer { text-align: center; padding: 10px 0; background-color: #6699ff; color: #ffffff; }