Edpnc.com 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.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
Element “object” is missing one or more of the following attributes: “data”, “type”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Empty heading.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
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