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201001 Aug
Mozilla announced the arrival of Firefox 4 Beta 2 late last week, only three weeks after the release of Beta 1. This updated release includes two major improvements over the first beta release, notably increased performance and increased support for CSS3 Transitions.
You can download the latest release here.
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201007 Jul
The first public beta of the forthcoming Firefox 4 browser has been released bringing increased support for CSS3 amongst various other improvements.
One of the most notable new additions in Firefox 4 is support for CSS3 Transitions (with the -moz- prefix). Webkit based browsers (such as Safari / Chrome) and Opera have supported CSS3 Transitions for some time, almost three years in Webkit’s case, and it is reassuring to see that Mozilla have finally made an effort to catch up with the competition in this area.
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201016 Mar
Microsoft today announced further details of their forthcoming Internet Explorer 9 browser, along with the first platform preview for developers, at their MIX Conference 2010.
Amongst the announcements comes increased support for CSS3, with support promised for CSS3 Selectors, Namespaces, Colors, Values, Backgrounds & Borders and Fonts, along with increased support for HTML5 and improvements in JavaScript performance.
The platform preview, downloadable from the Internet Explorer website, comes with a number of demonstrations including those for CSS3 border-radius and selectors. The preview also scores an impressive 578/578 on our CSS3 Selectors Test and an improved 55/100 on the Acid 3 test, with further improvements promised before the final release.
You can read more on the Internet Explorer blog, or download the platform preview here.
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201017 Feb
Posted in Browsers
Research in Motion, manufacturers of the popular BlackBerry smart phone series, have announced plans to launch a new web browser for their phones based on the open source WebKit layout engine, and offered delegates at this weeks Mobile World Congress a sneak peak (see the video at the end of this post).
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201019 Jan
Keith Clark, an independent web developer from the UK, has developed a JavaScript solution to IE’s CSS3 shortcomings in relation to CSS3 selectors. CSS3 selectors became the first W3C module to reach proposed recommendation status back in December 2009.
His ie-css3.js project (currently in beta) allows Internet Explorer, versions 5 through 8, to identify CSS3 pseudo-class selectors and render any style rules defined with them. All this is achieved by simply including the script, along with Robert Nyman’s DomAssistant, within the head element of your web pages.
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201007 Jan
As you may (or may not) know, I’m an Invited Expert on the CSS Working Group at W3C. Mostly I talk about specs. But today, I’m going to talk about testing.
W3C is working on test suites for the CSS specs, and I wanted us to have more web authors involved. Many of you have been frustrated with the inconsistent levels of CSS support across browsers, and I believe collaborative testing is one of the major ways we can improve the situation.
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200922 Dec
Opera has today issued a pre-alpha release of Opera 10.5 offering increased support for CSS3 and HTML5 as well as vastly increased JavaScript performance and improvements to the browser’s user interface.
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200918 Nov
Microsoft today offered developers an early glimpse of Internet Explorer 9 (IE9) at their 2009 Professional Developers Conference.
Although only at an early stage of development, the IE9 team already looks to have made some impressive leaps forward in terms of web standards support, particularly with regard to CSS3 selectors which, by the looks of the image below (taken from the IE blog), IE9 appears to score an impressive 574 out of 578 in our CSS3 selectors test, a vast improvement over IE8 which scored only 330/578.

CSS3 Selectors Test Results (courtesy of blogs.mdsn.com)
IE9 also looks set to boast support for CSS3 border-radius, an improved scoring in the Acid 3 test (if only slightly) and support for HTML5. You can read the full announcement on the IE blog here and we’ll bring you further announcements on the subject as more information becomes available.
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200902 Nov
Mozilla has joined a growing list of organizations to throw their support behind the Web Open Font Format (WOFF) and will support the embedding of WOFF fonts via @font-face from Firefox 3.6 onwards, or if you’re a developer and want to play around with this now, just download a recent nightly build or beta.
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200901 Sep
After many man-hours of work, Opera has unleashed Opera 10. This release contains the Opera Presto 2.2 rendering engine. The two main features in regards to CSS3 are Web Fonts and full support for the CSS 3 Color specification.






