title: How to restrict the CSS for only a particular page?
body: <p>I was trying to insert another html page into an php page by using "include"
  and that html page is having some stylesheets imported,</p>
  
  <p><strong>When I insert that page, it disturbs my PHP page..</strong></p>
  
  <p>How can I restrict the CSS for that particular page only?</p>