Eizo.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.
Attribute “type” not allowed on element “form” at this point.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “h2” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
End tag “div” seen, but there were open elements.
Unclosed element “section”.
Stray end tag “section”.
Stray end tag “div”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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