Wabe.org W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “contentinfo” role is unnecessary for element “footer”.
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value “https://github.com/WP-API/WP-API” for attribute “rel” on element “link”: The string “https://github.com/WP-API/WP-API” is not a registered keyword.
Bad value “https://fonts.googleapis.com/css?family=Droid%20Serif|Roboto+Condensed|Roboto+Bold|Roboto:400,700” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Bad value “_facebook” for attribute “target” on element “a”: Reserved keyword “facebook” used.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “_twitter” for attribute “target” on element “a”: Reserved keyword “twitter” used.
Bad value “_newsletter” for attribute “target” on element “a”: Reserved keyword “newsletter” used.
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