body { font-family: Arial, sans-serif; line-height: 1.8; padding: 20px; max-width: 900px; margin: auto; background-color: #f9f9f9; color: #333; } h1, h2, h3 { color: #2c3e50; } h1 { text-align: center; border-bottom: 2px solid #2980b9; padding-bottom: 10px; } h2 { margin-top: 40px; border-left: 5px …