Dofe.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “screen, projection” for attribute “media” on element “link”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
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 “header” for attribute “role” on element “header”.
The element “a” must not appear as a descendant of the “button” element.
Element “div” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Attribute “aria-role” not allowed on element “div” at this point.
Duplicate attribute “title”.
Attribute “tweet” not allowed on element “div” at this point.
No “p” element in scope but a “p” end tag seen.
Attribute “aria-role” not allowed on element “footer” at this point.
Bad value “javascript://” for attribute “href” on element “a”: missing } after function body
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