Renpou.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Legacy encoding “shift_jis” used. Documents must use UTF-8.
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
Bad value “text/html; charset=Shift_JIS” for attribute “content” on element “meta”: “charset=” must be followed by “utf-8”.
Attribute “cols” not allowed on element “frameset” at this point.
Attribute “frameborder” not allowed on element “frameset” at this point.
Attribute “border” not allowed on element “frameset” at this point.
Attribute “bordercolor” not allowed on element “frameset” at this point.
The “frameset” element is obsolete. Use the “iframe” element and CSS instead, or use server-side includes.
Element “noframes” not allowed as child of element “html” in this context. (Suppressing further errors from this subtree.)
The “noframes” element is obsolete. Use the “iframe” element and CSS instead, or use server-side includes.
Warnings:
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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