Thanks for the response dresden_phoenix.
So, what I do want is the #BelowHeaders section to adjust according to the content within it.
So, I set the #MainContent height to 4000px which is what I had it at originally, but the problem is that I have too much blank space at that height. I need more height on some pages vs others. However, I'd just like it to adjust according to the content in the #MainContent area which is most likely dictated by the content in the
since the #RightNav height won't change that much. However, just like you said ( dresden_phoenix)
Setting the height to 100% sets that element to the height of the PARENT element IF (and only if) that parent element has a set height.
the #rightNav is following the behavior and I'd like to do the same for the #MainLeftcontent as a whole.