Heinzhistorycenter.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
No “p” element in scope but a “p” end tag seen.
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate attribute “name”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “https://www.facebook.com/tr?id=1442601769341631&ev=PageView&noscript=1&cd[domain]=www.heinzhistorycenter.org” for attribute “src” on element “img”: Illegal character in query: “[” is not allowed.
Bad value “https://www.facebook.com/tr?id=1442601769341631&ev=GeneralEvent&noscript=1&cd[post_type]=page&cd[content_name]=Home&cd[post_id]=5&cd[domain]=www.heinzhistorycenter.org” for attribute “src” on element “img”: Illegal character in query: “[” is not allowed.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “textbox” role is unnecessary for an “input” element that has no “list” attribute and whose type is “text”.
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