I have a site which has several different options for left and right containers and a centre.

• The left div is always the same size, however some times it's not shown.
• The right has 3 options, small, normal or wide. Only one rightside will be shown at once, but some times there's none.
• The center should adjust to the left as well as the right side taking up as much space as possible but not push the right div to a new line (as it does with width:100%)

Is this at all possible? Having a div just, doing what you want it to do without having to tell it how?

I made an example in Fiddle in case my explanation was unclear: http://jsfiddle.net/WDZFx/13/

Thanks in advance!