Håkon Wium Lie is the CTO of Opera Software. His job is to make sure Opera remains a better, smaller and faster browser than the one you know. Also, he is a director of YesLogic, the company behind the Prince web-to-PDF formatter. Before joining Opera in 1999, Håkon worked at W3C where he was responsible for the development of Cascading Style Sheets (CSS), a concept he first proposed while working with Tim Berners-Lee at CERN in 1994. Håkon holds a MS degree in Visual Studies from the MIT Media Lab.