Disabilitysecrets.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “h2” seen, but there were open elements.
End tag “span” seen, but there were open elements.
Unclosed element “strong”.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “policy"” not allowed on element “a” at this point.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
Attribute “policy"” is not serializable as XML 1.0.
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