Yamakei-online.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Duplicate ID “nav”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “dl” is missing a required child element.
Element “dl” is missing a required instance of child element “dd”.
Bad element name “fb:like-box”: Code point “U+003A” is not allowed
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The first occurrence of ID “nav” was here.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Element name “fb:like-box” cannot be represented as XML 1.0.
The “charset” attribute on the “script” element is obsolete.
This document appears to be written in Japanese. Consider adding “lang="ja"” (or variant) to the “html” start tag.
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