Question:

Why """<html xmlns="http://www.w3.org/1999/xhtml">"""... instead of just """<html>"""?

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Why does dreamweaver automatically put """<html xmlns="http://www.w3.org/1999/xhtml">""" instead of just """<html>""" when you create a new html file?

Here's everything:

1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-...

2. <html xmlns="http://www.w3.org/1999/xhtml">

3. <head>

4. <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-2" />

5. <title>Untitled Document</title>

6. </head>

7.

8. <body>

9. </body>

10. </html>

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The DOCTYPE explains what sort of document type it is (although browsers usually take their best guess if it's not present). The xmlns part is the namespace of the xml document, since you're composing an XHTML page. It'll work without all that, most likely, but it's better coding practice to include it.
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