Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “https://www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Attribute “name” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Element “form” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
CSS: “display”: Parse Error.
Attribute “checked” not allowed on element “input” at this point.
Attribute “alt” not allowed on element “a” at this point.
Duplicate ID “left”.
Duplicate ID “right”.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
Row 1 of a row group established by a “tbody” element has no cells beginning on it.
Stray end tag “div”.
Duplicate ID “bottom”.
Duplicate ID “inner”.
Duplicate ID “top”.
Duplicate ID “middle”.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
The “type” attribute is unnecessary for JavaScript resources.
The “form” role is unnecessary for element “form”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “left” was here.
The first occurrence of ID “right” was here.
The first occurrence of ID “bottom” was here.
The first occurrence of ID “inner” was here.
The first occurrence of ID “top” was here.
The first occurrence of ID “middle” was here.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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