Appairbrush.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include more than one “meta” element with a “charset” attribute.
Bad value “” for attribute “href” on element “link”: Must be non-empty.
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 “pb” for attribute “hreflang” on element “link”: The language subtag “pb” is not a valid ISO language part of a language tag.
Attribute “allow” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “post-309”.
Duplicate ID “post-303”.
Duplicate ID “post-45”.
Duplicate ID “post-44”.
Warnings:
Empty heading.
The “main” role is unnecessary for element “main”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The value of attribute “style” on element “article” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
The first occurrence of ID “post-309” was here.
The first occurrence of ID “post-303” was here.
The first occurrence of ID “post-45” was here.
The first occurrence of ID “post-44” was here.
The value of attribute “style” on element “a” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
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