To improve SEO and eliminate duplicate content, ensure your website’s text and HTML are unique. Avoid using identical content across multiple pages. If you have multiple pages with similar information, rewrite the content to provide a unique perspective or focus on different aspects of the topic. This will help search engines understand the value of each page and avoid penalizing your site for duplicate content. Remove any unnecessary class and CSS styles that do not contribute to the semantic structure or visual presentation. Focus on clear, concise, and relevant content that accurately represents the information presented.