Aiadc.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “about” not allowed on element “div” at this point.
Attribute “about” not allowed on element “article” at this point.
Attribute “alt” not allowed on element “div” at this point.
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 “section” at this point.
Attribute “viewbox” not allowed on element “figure” at this point.
Attribute “href” not allowed on element “span” at this point.
Attribute “alt” not allowed on element “svg” at this point.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “l” instead.
Warnings:
The “banner” role is unnecessary for element “header”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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