Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Bad value “cleartype” for attribute “http-equiv” on element “meta”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
Attribute “about” not allowed on element “div” at this point.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Attribute “datatype” not allowed on element “span” at this point.
Attribute “content” not allowed on element “span” at this point.
Attribute “about” not allowed on element “article” at this point.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “article” role is unnecessary for element “article”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “contentinfo” role is unnecessary for element “footer”.
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