Digimonostation.jp W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “dl” is missing a required child element.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “id” on element “article”: An ID must not be the empty string.
Duplicate ID “”.
Stray end tag “header”.
Character reference was not terminated by a semicolon.
Character reference expands to zero.
The “sizes” attribute may be specified only if the “srcset” attribute is also present.
Warnings:
The “banner” role is unnecessary for element “header”.
The first occurrence of ID “” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “main” role is unnecessary for element “main”.
The “contentinfo” role is unnecessary for element “footer”.
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