<div id="content">
</div>
#content{
height:100%;
z-index:2;
position:relative;
top:40px
}
The content within this DIV is positioned 40px from the top of the page and will scroll under a navigation bar that is 40px high.
I am trying to figure out a way for #content to fill the remaining window space without extending an additional 40px like it does when using height:100%.
It's important that the content div can expand beyond the window height if there is enough content inside it.