title: Included file from another directory can't locate CSS file or images?
body: <p>I asked <a href="https://stackoverflow.com/questions/19027495/reference-file-in-higher-directory">in another question</a> about how to reference a file in a higher directory, and the answer is:</p>
  
  <pre><code>&lt;?php include('../filethatineed.html');?&gt;
  </code></pre>
  
  <p>The problem now is that filethatineed.html can't find it's CSS file. If it's in the same directory as my file that includes it, this works fine. But when it and it's reference files are moved to a different directory, those files can't be located anymore. Opening filethatineed.html in a web browser displays it correctly, so the files are in the correct place.</p>
  
  <p>Here's how I reference them currently, as an example:</p>
  
  <pre><code>&lt;link rel="stylesheet" type="text/css" href="header_style.css"&gt;
  </code></pre>
  
  <p>How should I reference them differently to make sure they work when the file is included from another directory?</p>