Opera Dragonfly

The Opera browser, one of the few at the moment, has a very good level of support for CSS3 (and other standards), turning into an ideal platform for testing various techniques that are offered by existing and future standards. However, these facts always faded into the background due to the lack of visual tools for testing in the browser, like FireBug or Web Developer Toolbar.

And now, the developers of Opera have decided, finally, to introduce their tool. Today it was announced that the version of Opera 9.5 beta 2, called Opera Dragonfly , will include tools for web developers. The release version of "alpha" is scheduled for May 6th. The status of the version speaks for itself - we will not see all the capabilities of the tool, but this will certainly be a good start.

Developers will also rely on user feedback in order to, above all, make the new tool as complete and useful as possible for web developers.
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At the moment, Opera's version of Opera 9.5 beta 2 (Kestrel) , which has support for CSS3, is available, so now you can test new features and standards while waiting for the release on May 6th.

Source css3.info