Visitnebraska.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “revision” for attribute “rel” on element “link”: The string “revision” is not a registered keyword.
Element “p” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
Attribute “title” not allowed on element “a” at this point.
Duplicate attribute “opacity”.
End tag “a” did not match the name of the current open element (“svg”).
Stray end tag “a”.
No space between attributes.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
The “type” attribute for the “style” element is not needed and should be omitted.
The “article” role is unnecessary for element “article”.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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