Al3abkari-pro.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:b” not allowed here.
Attribute “xmlns:data” not allowed here.
Attribute “xmlns:expr” not allowed here.
Bad value “service.post” for attribute “rel” on element “link”: The string “service.post” is not a registered keyword.
CSS: “backdrop-filter”: Property “backdrop-filter” doesn't exist.
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
Attribute “name” not allowed on element “div” at this point.
Bad value “http://” for attribute “href” on element “a”: Invalid host: empty host.
Warnings:
Attribute with the local name “xmlns:b” is not serializable as XML 1.0.
Attribute with the local name “xmlns:data” is not serializable as XML 1.0.
Attribute with the local name “xmlns:expr” is not serializable as XML 1.0.
The “type” attribute for the “style” element is not needed and should be omitted.
The “type” attribute is unnecessary for JavaScript resources.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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