Errors:
Bad value “https://www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
Element “input” with attribute “type” whose value is “button” must have non-empty attribute “value”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Attribute “alt” not allowed on element “a” at this point.
Bad element name “gcse:searchbox-only”: Code point “U+003A” is not allowed
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
Attribute “rel” not allowed on element “div” at this point.
Bad value “true” for attribute “selected” on element “option”.
Attribute “rel” not allowed on element “input” at this point.
Attribute “rel” not allowed on element “span” at this point.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Element name “gcse:searchbox-only” cannot be represented as XML 1.0.
Empty heading.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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