Ebury.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 “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
End tag “nav” seen, but there were open elements.
Unclosed element “div”.
Stray end tag “div”.
End tag “header” seen, but there were open elements.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Duplicate ID “”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Stray start tag “script”.
The “aria-controls” attribute must point to an element in the same document.
Warnings:
The first occurrence of ID “” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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