Northpointe.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
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.
Attribute “xmlns:xml” not allowed here.
Attribute “xmlns:ns1” not allowed here.
Attribute “ns1:xmlns:xml” not allowed on element “svg” at this point.
The element “button” must not appear as a descendant of the “a” 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 “src” on element “iframe”: Must be non-empty.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
Stray end tag “div”.
Stray end tag “a”.
Warnings:
The “navigation” role is unnecessary for element “nav”.
Attribute with the local name “xmlns:xml” is not serializable as XML 1.0.
Attribute with the local name “xmlns:ns1” is not serializable as XML 1.0.
Attribute “ns1:xmlns:xml” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “form” role is unnecessary for element “form”.
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