Sailogy.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”.
Bad value “Accept-CH” for attribute “http-equiv” on element “meta”.
The element “footer” must not appear as a descendant of the “header” element.
Element “footer” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “for” on element “label”: An ID must not be the empty string.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Bad value “page” for attribute “rel” on element “a”: The string “page” is not a registered keyword.
The element “header” must not appear as a descendant of the “footer” element.
The element “footer” must not appear as a descendant of the “footer” element.
The “for” attribute of the “label” element must refer to a non-hidden form control.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “form” role is unnecessary for element “form”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Attribute “href” without an explicit value seen. The attribute may be dropped by IE7.
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