How to make a div fill a remaining horizontal space?

Question

I have 2 divs: one in the left side and one in the right side of my page. The one in the left side has fixed width and I want the one of the right side to f

Answer 1

I have a very simple solution for this ! //HTML

    left


    right

//CSS

#left {
float:left;
width:50%;
position:relative;
background-color:red;
}
#right {
position:relative;
background-color:#00FF00;}

Link: http://jsfiddle.net/MHeqG/