Håkon Wium Lie

Norwegian software engineer

Developing Cascading Style Sheets (CSS) while based at CERN in 1994, Håkon Wium Lie created the fundamental mechanism for styling web pages. This technological shift transitioned the internet from simple text documents into the complex visual environments encountered today, setting the standard for how typography, aesthetics, and user accessibility are managed across all modern web browsers.

Early Career and Education

Born in 1965 in Halden, Norway, Wium Lie completed initial studies at Østfold University College between 1984 and 1986. His professional trajectory included positions at Televerket, INRIA, and the W3C. In 2006, he defended his PhD thesis at the University of Oslo, detailing the origins and design rationales behind CSS.

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Standardization and Browser Advocacy

At CERN in 1994, Wium Lie collaborated with Tim Berners-Lee and Robert Cailliau to develop the initial CSS proposal. He integrated this into the Arena browser to demonstrate functionality. Upon joining the W3C in 1995, he worked with Bert Bos on CSS1 and CSS2 specifications. Later, he challenged browser vendors regarding standards adherence, notably launching the Acid2 and Acid3 benchmark tests to address deficiencies in Internet Explorer.

Opera Software and YesLogic

Joining Opera Software in Oslo in 1999, he directed the implementation of mobile browsing technologies, specifically small-screen rendering for feature phones. He served as a spokesperson during the company's EU complaint against Microsoft, which resulted in a browser choice screen for Windows users. Since 2004, he has served as chairman of YesLogic, a firm producing Prince, a software tool that converts HTML and CSS into PDF documents.

Public Activism and Legal Challenges

Wium Lie has engaged in local and national civic activities, including the Stans.no campaign to remove advertising towers from Oslo streets. In 2012, he co-founded the Pirate Party of Norway. His advocacy also led to a 2018 legal dispute with Lovdata regarding the publication of Norwegian court decisions on the website rettspraksis.no. The Supreme Court eventually upheld Lovdata's database rights, ordering Wium Lie to pay significant legal costs.

Fast facts

Questions readers ask

What is the Acid2 test?

A benchmark test launched by Wium Lie to pressure Microsoft and other browser vendors into supporting common web standards.

Why was Wium Lie sued by Lovdata?

For publishing Norwegian court decisions on a volunteer website, which the Supreme Court ruled infringed upon the database rights of Lovdata.

Achievements

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