A CodePen by Tyrus. Simple transparent input boxes - Updated version thanks to input from these awesome folks:
Druid of Lûhn - http://codepen.io/Druid-of-Luhn
Hugo Giraudel - http://codepen.io/HugoGiraudel
Kasper Mikiewicz - http://codepen.io/Idered

Fixed poor construction (using div's originally), and shitty centering techinque. Thank you @Druid of Lûhn for the superb example: http://codepen.io/Druid-of-Luhn/pen/jsytf