Anest-iwata.co.jp W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “Content-Script-Type” for attribute “http-equiv” on element “meta”.
Bad value “Content-Style-Type” for attribute “http-equiv” on element “meta”.
A “link” element must not appear as a descendant of a “body” element unless the “link” element has an “itemprop” attribute or has a “rel” attribute whose value contains “dns-prefetch”, “pingback”, “preconnect”, “prefetch”, “preload”, “prerender”, or “stylesheet”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No space between attributes.
A slash was not immediately followed by “>”.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Bad value “” for attribute “type” on element “script”: Expected a MIME type but saw the empty string.
Attribute “text” not allowed on element “script” at this point.
Attribute “javascript""” not allowed on element “script” at this point.
Warnings:
Attribute “javascript""” is not serializable as XML 1.0.
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