Edding.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “en-EN” for attribute “lang” on element “html”: Bad region subtag.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
End tag “li” seen, but there were open elements.
Unclosed element “a”.
Start tag “a” seen but an element of the same type was already open.
No “a” element in scope but a “a” end tag seen.
Bad value “button” for attribute “type” on element “a”: Subtype missing.
The “aria-describedby” attribute must point to an element in the same document.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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