title: How-to mix fixed and percentage heights/width using css without javascript
body: <p>I want to achieve a layout like this: </p>
  
  <pre><code> -----------------------------------------------------------
  |                                                          |
  |  fixed height                                            |
  |                                                          |
  |----------------------------------------------------------|
  |                                                      | s |
  | takes all the rest available screen height           | c |
  | fluid height, not fixed,                             | r | 
  | dependent on the screen height                       | o |
  |                                                      | l |   
  |                                                      | l |
  |                                                      | b |
  |                                                      | a |
  |                                                      | r |
  ------------------------------------------------------------
  </code></pre>
  
  <p>Using css and html, without javascript, is it possible? Scrollbar should be completely visible, from top to bottom.</p>