title: Position div relative to another element
body: <p>I would like to position a div withing another element but make it stay in place when a page is scrolled vertically. The parent element is longer then the screen height. Can that be done with just CSS or do I need to use jQuery (that's what i normally use)? I'd use fixed position but am not sure how to associate it relative to the parent div...</p>
  
  <pre><code>&lt;div id="veryHighDiv"&gt;
     &lt;div id="positionMe"&gt;&lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>So, I need it to be position relative to the parent in term of horizontal position, but "fixed" when it comes to vertical scroll.</p>