Håkon came to Opera from W3C, where he was responsible for style sheets. In 1994 he invented a small language called Cascading Style Sheets (CSS). CSS describes how web pages are presented — on screens, in print, or read out loud. You can read about it in a book “Cascading Style Sheets: Designing for the Web” he co-authored with Bert Bos. The book is written in HTML and CSS. Håkon is a graduate of the MIT Media Lab where he was part of Walter Bender’s Electronic Publishing Group.

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