Battersea.org.uk W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “x-dns-prefetch-control” for attribute “http-equiv” on element “meta”.
Attribute “alt” not allowed on element “a” at this point.
Bad value “_black” for attribute “target” on element “a”: Reserved keyword “black” used.
Stray start tag “script”.
Element “style” not allowed as child of element “noscript” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Warnings:
The “main” role is unnecessary for element “main”.
The “button” role is unnecessary for element “button”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “navigation” role is unnecessary for element “nav”.
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