C2

body { font-family: Arial, sans-serif; margin: 0; padding: 0; } header { background-color: #333; color: #fff; padding: 10px; text-align: center; } header h1 { margin: 0; } nav a { color: #fff; margin: 0 15px; text-decoration: none; } nav a:hover { text-decoration: underline; } main { padding: 20px; text-align: center; } footer { background-color: #333; color: #fff; padding: 10px; text-align: center; position: fixed; width: 100%; bottom: 0; }