Mzadqatar.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “http://www.w3.org/1999/html” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Attribute “rel” not allowed on element “style” at this point.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The element “a” must not appear as a descendant of the “button” element.
The “center” element is obsolete. Use CSS instead.
Stray end tag “script”.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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