The CSS 1 blueprint was completed in 1996. Microsoft's Internet Explorer 39 was appear in that year, featuring some bound abutment for CSS. But it was added than three years afore any web browser accomplished near-full accomplishing of the specification. Internet Explorer 5.0 for the Macintosh, alien in March 2000, was the aboriginal browser to accept abounding (better than 99 percent) CSS 1 support,11 before Opera, which had been the baton aback its addition of CSS abutment 15 months earlier. Added browsers followed anon afterwards, and abounding of them additionally implemented genitalia of CSS 2. As of August 2010, no (finished) browser has absolutely implemented CSS 2, with accomplishing levels capricious (see Comparison of blueprint engines (CSS)).
Even admitting aboriginal browsers such as Internet Explorer 39 and 4, and Netscape 4.x had abutment for CSS, it was about abridged and had austere bugs. This was a austere obstacle for the acceptance of CSS.
When after 'version 5' browsers began to action a adequately abounding accomplishing of CSS, they were still incorrect in assertive areas and were abounding with inconsistencies, bugs and added quirks. The admeasurement of such CSS-related inconsistencies and alike the aberration in affection abutment has fabricated it difficult for designers to accomplish a constant actualization beyond browsers and platforms. Some authors resorted to workarounds such as CSS hacks and CSS filters.
Problems with browsers' patchy acceptance of CSS, forth with errata in the aboriginal specification, led the W3C to alter the CSS 2 accepted into CSS 2.1, which confused nearer to a alive snapshot of accepted CSS abutment in HTML browsers. Some CSS 2 backdrop that no browser auspiciously implemented were dropped, and in a few cases, authentic behaviors were afflicted to accompany the accepted into band with the absolute absolute implementations. CSS 2.1 became a Candidate Recommendation on February 25, 2004, but CSS 2.1 was pulled aback to Alive Draft cachet on June 13, 2005,12 and alone alternate to Candidate Recommendation cachet on July 19, 2007.13
In the past, some web servers were configured to serve all abstracts with the filename addendum .css14 as mime blazon application/x-pointplus15 rather than text/css. At the time, the Net-Scene aggregation was affairs PointPlus Maker to catechumen PowerPoint files into Compact Slide Show files (using a .css extension).16
Even admitting aboriginal browsers such as Internet Explorer 39 and 4, and Netscape 4.x had abutment for CSS, it was about abridged and had austere bugs. This was a austere obstacle for the acceptance of CSS.
When after 'version 5' browsers began to action a adequately abounding accomplishing of CSS, they were still incorrect in assertive areas and were abounding with inconsistencies, bugs and added quirks. The admeasurement of such CSS-related inconsistencies and alike the aberration in affection abutment has fabricated it difficult for designers to accomplish a constant actualization beyond browsers and platforms. Some authors resorted to workarounds such as CSS hacks and CSS filters.
Problems with browsers' patchy acceptance of CSS, forth with errata in the aboriginal specification, led the W3C to alter the CSS 2 accepted into CSS 2.1, which confused nearer to a alive snapshot of accepted CSS abutment in HTML browsers. Some CSS 2 backdrop that no browser auspiciously implemented were dropped, and in a few cases, authentic behaviors were afflicted to accompany the accepted into band with the absolute absolute implementations. CSS 2.1 became a Candidate Recommendation on February 25, 2004, but CSS 2.1 was pulled aback to Alive Draft cachet on June 13, 2005,12 and alone alternate to Candidate Recommendation cachet on July 19, 2007.13
In the past, some web servers were configured to serve all abstracts with the filename addendum .css14 as mime blazon application/x-pointplus15 rather than text/css. At the time, the Net-Scene aggregation was affairs PointPlus Maker to catechumen PowerPoint files into Compact Slide Show files (using a .css extension).16
No comments:
Post a Comment