365.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Stray start tag “html”.
Attribute “xmlns:wb” not allowed here.
Element “style” not allowed as child of element “section” in this context. (Suppressing further errors from this subtree.)
Element “form” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “dl” is missing a required instance of child element “dd”.
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
Stray start tag “script”.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
Attribute with the local name “xmlns:wb” is not serializable as XML 1.0.
The “type” attribute is unnecessary for JavaScript resources.
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 “type” attribute for the “style” element is not needed and should be omitted.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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