Dogbitelaw.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “g:plusone” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “fb:like” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Bad element name “fb:share-button”: Code point “U+003A” is not allowed
No space between attributes.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “div” at this point.
Stray end tag “div”.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
The “navigation” role is unnecessary for element “nav”.
The “banner” role is unnecessary for element “header”.
The “main” role is unnecessary for element “main”.
Element name “g:plusone” cannot be represented as XML 1.0.
Element name “fb:like” cannot be represented as XML 1.0.
Element name “fb:share-button” cannot be represented as XML 1.0.
Attribute “"” is not serializable as XML 1.0.
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