Sermo.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “Cache-control” for attribute “http-equiv” on element “meta”.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “id+"topmenu_18"” not allowed on element “li” at this point.
Duplicate attribute “type”.
Element “option” without attribute “label” must not be empty.
Bad value “true” for attribute “required” on element “input”.
Attribute “type” not allowed on element “textarea” at this point.
Warnings:
Empty heading.
Attribute “id+"topmenu_18"” is not serializable as XML 1.0.
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).
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