title: CSS display:block and position:fixed
body: <p>Why will this code:</p>
  
  <pre><code>div {
      background-color: yellow;
      display:block;
      position:fixed;
  }
  </code></pre>
  
  <p>not display the <code>div</code> as <code>display:block</code> (i.e. flow across the page) when I add <code>position:fixed</code>? It seems to work otherwise?</p>
  
  <p>N.B. I am very new to CSS so I appologise if it is just a silly error</p>