Metro.news W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Stray end tag “span”.
End tag “div” seen, but there were open elements.
Unclosed element “span”.
End tag “section” seen, but there were open elements.
Unclosed element “div”.
No space between attributes.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “""” not allowed on element “a” at this point.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Attribute “""” is not serializable as XML 1.0.
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