Tencarat.co.jp W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “ja_JP” for attribute “lang” on element “html”: The language subtag “ja_jp” is not a valid language subtag.
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.
Bad value “http://fonts.googleapis.com/css?family=Buenard:400,700|Roboto” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Attribute “rel” not allowed on element “div” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “information”.
Attribute “allow” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
Empty heading.
The first occurrence of ID “information” was here.
Japan JP