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I really love Eclipse (PDT)... But i'm developing sites using HTML5 and CSS3 and it mark the HTML5 tags like <nav>, <section> and <article> as invalid tags (inexistent).

How can I add those new tags to it?

And what about CSS3 rules?

I read something about remove the "invalid tag" check... and that's not what I want. :(

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What version of Eclipse you are using ? – ukanth May 19 '10 at 16:42
Eclipse Galileo build 20100218-0602 for Windows and Eclipse Galileo build 20100218-1602 (v1.2.2.20100216-1730) for Linux. – TiuTalk May 19 '10 at 17:01
up vote 3 down vote accepted

Not much info is available in the Zend site as regarding HTML5, so it's unclear whether they truly support it.

From examining the Zend Framework source file Doctype.php, it seems that the DOCTYPE should be declared as simply <!DOCTYPE html> in order to support HTML5, which is the correct format according to the HTML5 specification.

The error might also come from an HTML validator that you have installed.
In this case, you might be able to adjust its preferences.

I also hope that you have installed the latest Eclipse PHP Development Tools.

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@harrymc - I'm using the PDT... As I said in the question.. The only thing I can do about it is disable the "invalid tag" error.. And that's not correct. – TiuTalk May 25 '10 at 10:23
@TiuTalk: What about my other points - doctype and html validator? – harrymc May 25 '10 at 10:52
I'm having the same issue. Using a fresh eclipse PTD I just downloaded then -- up to date and no custom validators or anything installed. In my index file I've got <!DOCTYPE html> but the 'view' file with the html5 tags still throw warnings. – Dean Rather May 25 '11 at 10:12
I'm having the same issue as @DeanRather. – Robert Nov 1 '14 at 21:37

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