W3C validation errors (trailing slashes)

Use a HTML5 document declaration:

<!Doctype html>

XML self closing slashes are allowed in HTML5.

In an attempt to turn this into a WordPress question (really, it isn’t): WordPress spits out hard coded XHTML style in many places. Since most people will not send real XHTML, HTML5 is the best option to deal with WordPress’ legacy code while keep validating markup.

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