How to make div scale vertically all the way down?

Question

I have the following situation, presented in the picture. Grey div is the parent of magenta and blue divs. Magenta div scales vertically with the content. I would like to ha

Answer 1

In my experience setting the height of the blue DIV to 100% doesn't work. The only time that I have wanted this was to have the blue DIV with it's own background, to solve this you need to just have the background of the gray DIV include the blue background of the other DIV.