CSS positioning: container always 60px off browser bottom, but scrollable
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I am trying to position a large container div 60 pixels **above** the browser bottom so as to make room for a video stream and still images, very similar to [this][1] solution here.

Unlike the common sticky/fixed type footer, the container is kept in its place on visiting the page and subsequent browser resize - but can be scrolled up for users wanting to explore the site's content.

Looking at the sample site, I can see that the CSS property "top" changes on browser resize, but I can't find the *mechanism* that accomplishes this.

How should I go about achieving this kind of *elasticity*?

Thank you very much in advance!

  [1]: http://www.damienhirst.com/