Errors:
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad value “help nofollow external” for attribute “rel” on element “link”: The string “nofollow” is not a registered keyword.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Bad value “true” for attribute “autofocus” on element “input”.
Attribute “autocapitalize” not allowed on element “input” at this point.
Attribute “autocorrect” not allowed on element “input” at this point.
Stray end tag “input”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “fb:like” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “size” not allowed on element “div” at this point.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
The “button” role is unnecessary for element “button”.
Element name “fb:like” cannot be represented as XML 1.0.
Potentially bad value “allow-same-origin allow-scripts allow-popups allow-forms” for attribute “sandbox” on element “iframe”: Setting both “allow-scripts” and “allow-same-origin” is not recommended, because it effectively enables an embedded page to break out of all sandboxing.
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