Errors:
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:fb” not allowed here.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
The “center” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “_blank"” for attribute “target” on element “a”: Reserved keyword “blank"” used.
“=” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “http://www.bigbadtoystore.com/bbts/default.aspx?utm_source=site&utm_medium=banner&utm_campaign=Allspark"” for attribute “href” on element “a”: Illegal character in query: “"” is not allowed.
Duplicate ID “fb-root”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The “navigation” role is unnecessary for element “nav”.
The “banner” role is unnecessary for element “header”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “contentinfo” role is unnecessary for element “footer”.
The first occurrence of ID “fb-root” was here.
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