Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
Bad value “us” for attribute “lang” on element “html”: The language subtag “us” is not a valid ISO language part of a language tag.
Stray end tag “span”.
Bad value “internal” for attribute “rel” on element “a”: The string “internal” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad element name “gcse:searchbox-only”: Code point “U+003A” is not allowed
End tag “div” seen, but there were open elements.
Unclosed element “gcse:searchbox-only”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
Bad value “chartPopup nofollow” for attribute “rel” on element “a”: The string “chartPopup” is not a registered keyword.
Attribute “checked” not allowed on element “input” at this point.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Empty heading.
Element name “gcse:searchbox-only” cannot be represented as XML 1.0.
The “button” role is unnecessary for element “button”.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
This document appears to be written in English but the “html” start tag has “lang="us"”. Consider using “lang="en"” (or variant) instead.
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