Iupac.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value “https://theeventscalendar.com” for attribute “rel” on element “link”: The string “https://theeventscalendar.com” is not a registered keyword.
Attribute “ng-app” not allowed on element “body” at this point.
No space between attributes.
Element “div” not allowed as child of element “hgroup” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “div” at this point.
Stray start tag “script”.
Warnings:
The “banner” role is unnecessary for element “header”.
Attribute “"” is not serializable as XML 1.0.
The “contentinfo” role is unnecessary for element “footer”.
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