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CSS 2.1 went to Proposed Recommendation on 12 April 2011. [48] After being reviewed by the W3C Advisory Committee, it was finally published as a W3C Recommendation on 7 June 2011. [49] CSS 2.1 was planned as the first and final revision of level 2—but low-priority work on CSS 2.2 began in 2015.
While working with Tim Berners-Lee and Robert Cailliau at CERN in 1994, he proposed the concept of Cascading Style Sheets (CSS). [7] As a showcase and testbed, he integrated CSS into the Arena web browser, which became the first CSS implementation.
January 14, 1997 HTML 3.2 [15] was published as a W3C Recommendation.It was the first version developed and standardized exclusively by the W3C, as the IETF had closed its HTML Working Group on September 12, 1996.
The CSS 1 test suite was created by Eric A. Meyer, Håkon Wium Lie and Tim Boland along with other contributors, finishing in 2018. In late 1998 the first version of CSS 2 was released. In 1999 a revision (CSS 2.1) was released. By 1999 there are 15 members working in "Cascading Style Sheets and Formatting Properties Working Group."
Berners-Lee was born in London on 8 June 1955, [24] the son of mathematicians and computer scientists Mary Lee Woods (1924–2017) and Conway Berners-Lee (1921–2019). His parents were both from Birmingham and worked on the Ferranti Mark 1, the first commercially-built computer.
The NeXT Computer which Berners-Lee used as the first web server. In April 1990, a draft patent application for a mass market consumer device for browsing pages via links "PageLink" was proposed by Craig Cockburn at Digital Equipment Corporation (DEC) whilst working in their Networking and Communications division in Reading, England. This ...
A proposed recommendation is the version of a standard that has passed the prior two levels. The users of the standard provide input. At this stage, the document is submitted to the W3C Advisory Council for final approval. [13] While this step is important, it rarely causes any significant changes to a standard as it passes to the next phase. [13]
As of June 2011, Firefox 5 includes CSS animations support. [4] CSS animation is also available as a module in the nightly builds of WebKit as well as Google Chrome, Safari 4 and 5 and Safari for iOS (iPhone, iPod Touch, iPad), Android versions 2.x and 3.x, Internet Explorer 10+ and Microsoft Edge browser, the BlackBerry OS 6 web browser, with the -webkit-prefix.