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).
Attribute “xmlns:fb” not allowed here.
Element “link” is missing one or more of the following attributes: “itemprop”, “property”, “rel”.
Attribute “property” not allowed on element “meta” at this point.
Attribute “itemprop” not allowed on element “meta” at this point.
Duplicate ID “open_btn2”.
Attribute “xmlns:v” not allowed here.
Element “li” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
End tag “div” seen, but there were open elements.
Unclosed element “form”.
Stray end tag “form”.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Element “div” not allowed as child of element “b” in this context. (Suppressing further errors from this subtree.)
The “center” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Malformed byte sequence: “92”.
A slash was not immediately followed by “>”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “href” not allowed on element “div” at this point.
Stray start tag “script”.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The first occurrence of ID “open_btn2” was here.
The “navigation” role is unnecessary for element “nav”.
Attribute with the local name “xmlns:v” is not serializable as XML 1.0.
The “form” role is unnecessary for element “form”.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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