Peak.org 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.
No space between attributes.
Element “option” without attribute “label” must not be empty.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “;"” not allowed on element “a” at this point.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
No “p” element in scope but a “p” end tag seen.
Element “ul” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Warnings:
Attribute “;"” is not serializable as XML 1.0.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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