body { font-family: Arial, sans-serif; margin: 0; padding: 0; background-color: #f4f4f4; color: #333; }\nheader { background-color: #333; color: #fff; padding: 1em 0; text-align: center; }\nmain { padding: 20px; text-align: center; }\nfooter { background-color: #333; color: #fff; text-align: center; padding: 1em 0; position: fixed; bottom: 0; width: 100%; }