@Bry: Indeed, the scrolling may not work for every instance — then again, depending on the content requirements, it may not be needed at all (e.g. if the absolutely positioned column will always have less content than the primary). Javascript is also an acceptable solution, as you said.
Something else worth noting for everyone: this isn’t intended to be a solution to the multiple column problem, as I stated in the article (we don’t yet have a perfect non-table solution that doesn’t require Javascript). Where this comes into play is less where main content columns are concerned (faux columns are a better solution in that instance), though in the context of this article it’s more difficult to show specific applications (that’s where your creativity and specific design requirements come into play).
@Bry: Indeed, the scrolling may not work for every instance — then again, depending on the content requirements, it may not be needed at all (e.g. if the absolutely positioned column will always have less content than the primary). Javascript is also an acceptable solution, as you said.
Something else worth noting for everyone: this isn’t intended to be a solution to the multiple column problem, as I stated in the article (we don’t yet have a perfect non-table solution that doesn’t require Javascript). Where this comes into play is less where main content columns are concerned (faux columns are a better solution in that instance), though in the context of this article it’s more difficult to show specific applications (that’s where your creativity and specific design requirements come into play).