Oceans-nadia.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “” for attribute “name” on element “input”: Must not be empty.
Element “p” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
Saw a start tag “image”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “40px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “alt” not allowed on element “a” at this point.
Warnings:
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
This document appears to be written in Japanese. Consider adding “lang="ja"” (or variant) to the “html” start tag.
Japan JP