Errors:
Attribute “xmlns:fb” not allowed here.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “up” for attribute “rel” on element “a”: The string “up” is not a registered keyword.
The “center” element is obsolete. Use CSS instead.
End tag “div” seen, but there were open elements.
Unclosed element “center”.
Duplicate ID “SignupButton”.
Bad value “auto” for attribute “height” on element “img”: Expected a digit but saw “a” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “98%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Bad value “”98%”” for attribute “height” on element “img”: Expected a digit but saw “”” instead.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Bad value “auto” for attribute “width” on element “img”: Expected a digit but saw “a” instead.
Attribute “"border” not allowed on element “img” at this point.
Bad value “Menu” for attribute “rel” on element “a”: The string “Menu” is not a registered keyword.
Duplicate attribute “target”.
The “font” element is obsolete. Use CSS instead.
Bad value “dofolow” for attribute “rel” on element “a”: The string “dofolow” is not a registered keyword.
Bad value “dofollow” for attribute “rel” on element “a”: The string “dofollow” is not a registered keyword.
Unclosed element “ul”.
Element “style” not allowed as child of element “footer” in this context. (Suppressing further errors from this subtree.)
Element “fb:like” not allowed as child of element “li” in this context. (Suppressing further errors from this subtree.)
Element “g:plusone” not allowed as child of element “li” in this context. (Suppressing further errors from this subtree.)
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “SignupButton” was here.
Attribute “"border” is not serializable as XML 1.0.
The “date” input type is not supported in all browsers. Please be sure to test, and consider using a polyfill.
Element name “fb:like” cannot be represented as XML 1.0.
Element name “g:plusone” cannot be represented as XML 1.0.
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