body { font-family: 'Arial', sans-serif; line-height: 1.6; margin: 20px; } h3 { color: #333; border-bottom: 2px solid #eee; padding-bottom: 5px; } h4 { color: #555; margin-top: 15px; } h5 { color: #777; margin-top: 10px; font-size: 1.1em; …