Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).
Bad value “text/html; charset=iso-8859-1” for attribute “content” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.
Duplicate attribute “class”.
Bad value “17px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Element “g:plusone” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “_new” for attribute “target” on element “a”: Reserved keyword “new” used.
No “li” element in scope but a “li” end tag seen.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “50px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “50px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “none” for attribute “border” on element “img”: Only “0” is a permitted zero literal.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “a” at this point.
Stray start tag “script”.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Element name “g:plusone” cannot be represented as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Attribute “"” is not serializable as XML 1.0.
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