How can we prevent overflow of a fixed div within a container? Initially, I attempted nesting fixed elements inside each other, but that did not solve the issue. The only solution that comes to mind is using "inverted" masks: other fixed divs that hide everything around the problematic one. However, it would be ideal if there are alternative methods available.
For reference, here is the fiddle link: http://jsfiddle.net/pjFa6/1/