It disappears because tbody normally will get no shorter than the tallest td no matter what you set its height to with CSS.
I think you should set an height to the tbody to make it work, look at this fiddle: http://jsfiddle.net/nicolapeluchetti/AsDvb.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.