How can I put a vertical line down the center of a div?

Question

How do I put a vertical line down the middle of a div? Maybe I should put two divs inside the div and put a left border on one and a right border on the other? I have a DIV

Answer 1

Three divs?

   

      /* ascx 1 goes here */
   
   

   

      /* ascx 2 goes here */