How to create border only on part of the side edge, or how to simulate it?

Issue

I think that two images will clarify everything

Now I have (jsfiddle):

And I am wondering is it possible to do that:

Solution

You could use :after to hide it, crude I know, but works in the latest browsers:

#column1:after{
    display:block;
    content:'';
    background-color:#f6f6f6;
    height:100%;
    width:5px;
    position:absolute;
    top:0;
    right:-5px;
}

JSFiddle

Answered By - George