Chemeketa.edu W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “banner” role is unnecessary for element “header”.
Attribute “xmlns:xlink” with a value other than “http://www.w3.org/1999/xlink” is not serializable as XML 1.0 without changing document semantics.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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).
Errors:
Attribute “x” not allowed on element “symbol” at this point.
Attribute “y” not allowed on element “symbol” at this point.
Attribute “aria-role” not allowed on element “div” at this point.
Bad value “//www.w3.org/1999/xlink” for the attribute “xmlns:link” (only “http://www.w3.org/1999/xlink” permitted here).
No space between attributes.
No “p” element in scope but a “p” end tag seen.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Element “h3” not allowed as child of element “label” in this context. (Suppressing further errors from this subtree.)
The “aria-controls” attribute must point to an element in the same document.
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