Errors:
Bad value “application/xhtml+xml; charset=UTF-8” for attribute “content” on element “meta”: The legacy encoding declaration did not start with “text/html;”.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Bad value “Content-Script-Type” for attribute “http-equiv” on element “meta”.
Bad value “Content-Style-Type” for attribute “http-equiv” on element “meta”.
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Duplicate ID “navigation”.
Duplicate ID “upper-block”.
Duplicate ID “contents”.
Attribute “popup” not allowed on element “a” at this point.
Stray end tag “end”.
End tag “li” seen, but there were open elements.
Unclosed element “div”.
A “link” element must not appear as a descendant of a “body” element unless the “link” element has an “itemprop” attribute or has a “rel” attribute whose value contains “dns-prefetch”, “pingback”, “preconnect”, “prefetch”, “preload”, “prerender”, or “stylesheet”.
Attribute “oid” not allowed on element “div” at this point.
Attribute “oid” not allowed on element “li” at this point.
Duplicate ID “nav”.
Element “li” not allowed as child of element “nav” in this context. (Suppressing further errors from this subtree.)
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Warnings:
The first occurrence of ID “navigation” was here.
The first occurrence of ID “upper-block” was here.
The first occurrence of ID “contents” was here.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “nav” was here.
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