title: How to use relative paths for included files such as .css
body: <p>I have a <code>header.php</code> file which contains a <code>.css</code> file link. </p>
  
  <p>When I "include" <code>header.php</code> into another php file in different folder, the <code>.css</code> href for that <code>header.php</code> is not correct for the new php file. </p>
  
  <p>How should I declare the <code>href</code> in my <code>.css</code> file to include the <code>header.php</code> with it that will be correct for any folder that php file is in?</p>