css-trick-to-make-columns-height-equal.css

/**
 * $Id$
 *
 * I did, indeed, have both of my equal-height columns set with the negative margin-bottom
 * and positive padding-bottom (3000px, in my case) as well as making the enclosing div equal
 * to a height of 100% (as well as both the HTML and BODY elements). The site worked fine under
 * FireFox and IE6 (and less).
 */

.sidebar {
  margin-bottom: -3000px;
  padding-bottom: 3000px;
}