title: Why web page loaded in iFrame has no css applied in Internet Explorer 7
body: <p>I have a web page that has a lot of CSS in it. I use an iframe to load it. It is working perfectly on almost each browser, but on IE version 7 no CSS is applied at all. When I open the page in a separate tab under IE7 it works, but it iframe even a line of CSS is not applied?</p>
  
  <p>Can anyone give me some tips from where to start the searching?</p>
  
  <p>Any helpwill be appreciated.</p>
  
  <p>EDIT: The main web page has the following doc-type:</p>
  
  <pre><code>!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"
  </code></pre>
  
  <p>I am not sure if it is true, but I have read that the strict doc-type could cause problems with iframe on older browsers. Could this broke the css of the frame?</p>