Errors:
Legacy 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:addthis” not allowed here.
No space between attributes.
Attribute “addthis:url” not allowed on element “div” at this point.
Attribute “addthis:title” not allowed on element “div” at this point.
Attribute “addthis:description” not allowed on element “div” at this point.
Attribute “pi:pinit:url” not allowed on element “a” at this point.
Attribute “pi:pinit:media” not allowed on element “a” at this point.
Attribute “pi:pinit:count-layout” not allowed on element “a” at this point.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
Attribute with the local name “xmlns:addthis” is not serializable as XML 1.0.
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
Attribute “addthis:url” is not serializable as XML 1.0.
Attribute “addthis:title” is not serializable as XML 1.0.
Attribute “addthis:description” is not serializable as XML 1.0.
Attribute “pi:pinit:url” is not serializable as XML 1.0.
Attribute “pi:pinit:media” is not serializable as XML 1.0.
Attribute “pi:pinit:count-layout” is not serializable as XML 1.0.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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