Whitney.org 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 “contentinfo” role is unnecessary for element “footer”.
The first occurrence of ID “Layer_2” was here.
The first occurrence of ID “Layer_1-2” was here.
Errors:
Element “li” not allowed as child of element “nav” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “width” on element “video”: The empty string is not a valid non-negative integer.
Bad value “” for attribute “height” on element “video”: The empty string is not a valid non-negative integer.
The element “video” with the attribute “controls” must not appear as a descendant of the “a” element.
Duplicate ID “Layer_2”.
Duplicate ID “Layer_1-2”.
Attribute “rel” not allowed on element “form” at this point.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
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