Errors:
Legacy doctype. Expected “<!DOCTYPE html>”.
Attribute “xmlns:b” not allowed here.
Attribute “xmlns:data” not allowed here.
Attribute “xmlns:expr” not allowed here.
Start tag “head” seen but an element of the same type was already open.
Bad value “service.post” for attribute “rel” on element “link”: The string “service.post” is not a registered keyword.
Bad value “none” for attribute “media” on element “link”: Media query ended prematurely.
The “center” element is obsolete. Use CSS instead.
Attribute “value” not allowed on element “input” at this point.
Element “input” is missing required attribute “alt”.
Attribute “name” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
No “p” element in scope but a “p” end tag seen.
Warnings:
Attribute with the local name “xmlns:b” is not serializable as XML 1.0.
Attribute with the local name “xmlns:data” is not serializable as XML 1.0.
Attribute with the local name “xmlns:expr” is not serializable as XML 1.0.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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