Harriscenter.net W3C HTML Markup Validation
HTML markup errors and warnings
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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 “type” attribute is unnecessary for JavaScript resources.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
Errors:
Bad value “navigation” for attribute “role” on element “a”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Attribute “caption” not allowed on element “img” at this point.
Attribute “alt” not allowed on element “a” at this point.
Attribute “loading” not allowed on element “iframe” at this point.
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