Ganref.jp W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Attribute “xmlns:og” not allowed here.
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Using the “meta” element to specify the document-wide default language is obsolete.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.
Bad value “Content-Style-Type” for attribute “http-equiv” on element “meta”.
Bad value “Content-Script-Type” for attribute “http-equiv” on element “meta”.
Bad value “description” for attribute “http-equiv” on element “meta”.
Bad value “keywords” for attribute “http-equiv” on element “meta”.
Bad value “imagetoolbar” for attribute “http-equiv” on element “meta”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “div” not allowed as child of element “h4” in this context. (Suppressing further errors from this subtree.)
End tag “br”.
The “align” attribute on the “p” element is obsolete. Use CSS instead.
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 “type” attribute is unnecessary for JavaScript resources.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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