title: CSS fixed div within container
body: <p>How do I have fixed div contained within a div.container, where the fixed div is ONLY fixed within the div.container (and not the rest of the page)? That means if I scroll down the page, outside of the container div, the fixed div does not scroll. It's hard to explain, see this example: <a href="http://jsfiddle.net/jg8qJ/" rel="noreferrer">http://jsfiddle.net/jg8qJ/</a></p>