Cuoca.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Duplicate ID “naiyou”.
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 “sidebar”.
The “clear” attribute on the “br” element is obsolete. Use CSS instead.
Element “br” not allowed as child of element “dl” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “dl” in this context. (Suppressing further errors from this subtree.)
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
The first occurrence of ID “naiyou” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “sidebar” was here.
This document appears to be written in Japanese. Consider adding “lang="ja"” (or variant) to the “html” start tag.
Japan JP