.article-container { max-width: 800px; margin: 0 auto; padding: 20px; font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #333; background-color: #fff; } .intro { font-size: 1.1em; line-height: 1.9; color: #2c3e50; margin: 20px 0; padding: 20px; background-color: #f8f9fa; bord…