Kaumo.jp W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “span” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
CSS: “border-style”: Parse Error.
Attribute “@kaumo_jp” not allowed on element “a” at this point.
Attribute “follow” not allowed on element “a” at this point.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
The “contentinfo” role is unnecessary for element “footer”.
Attribute “@kaumo_jp” is not serializable as XML 1.0.
This document appears to be written in Japanese. Consider adding “lang="ja"” (or variant) to the “html” start tag.
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