Errors:
Attribute “xmlns:article” not allowed here.
Attribute “xmlns:book” not allowed here.
Attribute “xmlns:product” not allowed here.
Attribute “xmlns:profile” not allowed here.
Attribute “xmlns:video” not allowed here.
Text not allowed in element “iframe” in this context.
Bad value “banner” for attribute “role” on element “figure”.
Element “img” is missing required attribute “src”.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Attribute “about” not allowed on element “article” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Bad value “contentinfo” for attribute “role” on element “section”.
Warnings:
Attribute with the local name “xmlns:article” is not serializable as XML 1.0.
Attribute with the local name “xmlns:book” is not serializable as XML 1.0.
Attribute with the local name “xmlns:product” is not serializable as XML 1.0.
Attribute with the local name “xmlns:profile” is not serializable as XML 1.0.
Attribute with the local name “xmlns:video” is not serializable as XML 1.0.
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).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “main” role is unnecessary for element “main”.
The “article” role is unnecessary for element “article”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “navigation” role is unnecessary for element “nav”.
The “complementary” role is unnecessary for element “aside”.
The “contentinfo” role is unnecessary for element “footer”.
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