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.
Duplicate ID “top-nav-events”.
Attribute “rel” not allowed on element “li” at this point.
Table columns in range 3…4 established by element “td” have no cells beginning in them.
End tag “h3” seen, but there were open elements.
Attribute “bronto-popup-id” not allowed on element “script” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “marginheight” attribute on the “iframe” element is obsolete. Use CSS instead.
The “marginwidth” attribute on the “iframe” element is obsolete. Use CSS instead.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The first occurrence of ID “top-nav-events” was here.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
A table row was 2 columns wide, which is less than the column count established by the first row (4).
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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