Do put / character in end of meta tag is required?

**Dormilich** · Jan 30 '10, 09:22 AM

those two things are required, if you serve your document as XML*. the / denotes an empty element and the xmlns attribute is the namespace that you must apply in XHTML.

* - that is, the MIME type of the document is: text/xml, application/xhtml+xml, application/xml, etc. but not text/html.

**drhowarddrfine** · Jan 30 '10, 04:02 PM

The meaning of the xmlns part is "XML namespace". For the element
<html xmlns="http://www.w3.org/1999/xhtml"> you are stating that elements are in the XHTML namespace as defined by the W3 at that URI. If the user agent or browser does not know if the tags you use are legitimate, it can go to that address to check. Browsers know what html and xhtml are so they really don't do that.

It helps in cases where you might have a <p> element, for example, that you want to have two different meanings in two cases. You would write them one as <html:p> and the other as <mytag:p> if you stated the namespace as:

<html xmlns="http://www.w3.org/1999/xhtml"
mytag:xmlns="ht tp://www.mytags.com/mytags">

Chances are, you don't serve your page as xhtml anyway so using that line is as useless as writing markup with xhtml.

Do put / character in end of meta tag is required?

Do put / character in end of meta tag is required?

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