title: link to css file do not work in chrome and opera and work in firefox
body: <p>I have the following link to css file </p>
  
  <pre><code>&lt;head&gt;
      &lt;link rel="stylesheet" href="css/stylesheet.css" /&gt;
  &lt;/head&gt;
  &lt;body&gt;
      &lt;a href="index.php"&gt;&lt;img src="images/logo/logo.png" alt="pokemonroad logo" width="270px" height="135px" /&gt;&lt;/a&gt;
      &lt;img src="images/banner.png"  class="banner"/&gt;
  &lt;/body&gt;
  </code></pre>
  
  <p>its was working fine, but now can not see css/stylesheet.css in all browsers.</p>