David-smith.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.
The “center” element is obsolete. Use CSS instead.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
End tag “center” seen, but there were open elements.
Unclosed element “div”.
Attribute “pubdate” not allowed on element “time” at this point.
Bad value “320px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “200px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “footnote” for attribute “rel” on element “a”: The string “footnote” is not a registered keyword.
Bad value “300px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “reference” for attribute “rel” on element “a”: The string “reference” is not a registered keyword.
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