body { font-family: Arial, sans-serif; line-height: 1.6; margin: 0; padding: 20px; color: #333; background-color: #f4f4f4; } h1, h2, h3 { color: #fff; padding: 10px; border-radius: 5px; margin: 20px 0 10px; background-color: #333; } h1 { background-color: #2c3e50; } h2 { background-color: #3498db; }…