This pen was inspired by Brad's workshop presentation #bdconf in Nashville, TN, 10/23/13. We all know the problem. With only a placeholder label, once the user starts typing, he/she may not recall the label for that field. Oh what a dastardly thing! Well, here's a stab at using some JS to show a top-left aligned label when a value exists in the field.
A Pen by Josh Palmeri on CodePen.