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”.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
End tag “h3” seen, but there were open elements.
Unclosed element “a”.
Duplicate ID “dateMapEvent”.
Duplicate ID “dateEvent”.
Duplicate ID “eventLocation”.
Bogus comment.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
The “region” role is unnecessary for element “section”.
The “main” role is unnecessary for element “main”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “article” role is unnecessary for element “article”.
The first occurrence of ID “dateMapEvent” was here.
The first occurrence of ID “dateEvent” was here.
The first occurrence of ID “eventLocation” was here.
The “contentinfo” role is unnecessary for element “footer”.
The “list” role is unnecessary for element “ul”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “navigation” role is unnecessary for element “nav”.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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