title: position: sticky to bottom left
body: <p>I have just been playing around in FF32 &amp; Safari 7, with <code>position: sticky</code>. And it works perfecly with <code>top: 0px</code> or <code>left: 0px</code> (to stick horizontally), but it doesn't seem to work when I try <code>bottom: 0px</code> or even better, combine <code>bottom: 0; left: 0</code> it doesn't set itself to the bottom of the element. This behaviour could be tried out here: <a href="http://html5-demos.appspot.com/static/css/sticky.html" rel="noreferrer">http://html5-demos.appspot.com/static/css/sticky.html</a>, by simply changing the <code>top: 10px</code> attribut to <code>bottom: 0</code>. Is that not supposed to work?</p>
  
  <p>I think it is a valid use-case to stick something to the bottom in the same way as one would want to stick something to the top.
  In our case it is, because I am interested in having something sticky on horizontal scroll, but I want this element to be at the bottom of the parent element.</p>
  
  <p>Anyway, any suggestions and extra info are welcome.</p>