{ font-family: Arial, sans-serif; line-height: 1.6; margin: 20px; } h1, h2, h3 { color: #333; } .container { max-width: 800px; margin: 0 auto; } .section { margin-bottom: 30px; } .section-title { font-size: 1.2em; font-weight: bold; margin-bottom: 10px; } .section-content { margin-bottom: 20px; }