RezaRob - 10:50 am on Dec 12, 2011 (gmt 0)

The body may then take a percentage value of it's parent. [...] Hence the "Cascading" in C.S.S. ;)

Not a "birdbrain" _at_ all! ;)

To use a a percentage height the parent must also have a height defined. If the parent has no height defined then the percentage height of the child will collapse to height :auto (the default).

Excellent, awesome. Thanks everyone. Paul, thanks for all your tips. :)