Flickr.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:cc” not allowed here.
Bad value “x-dns-prefetch-control” for attribute “http-equiv” on element “meta”.
Attribute “value” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
CSS: “padding-left”: “constant(safe-area-inset-left)” is not a “padding-left” value.
CSS: “padding-left”: “env(safe-area-inset-left)” is not a “padding-left” value.
CSS: “padding-right”: “constant(safe-area-inset-right)” is not a “padding-right” value.
CSS: “padding-right”: “env(safe-area-inset-right)” is not a “padding-right” value.
CSS: “width”: Too many values or values are not recognized.
Bad value “heading” for attribute “role” on element “a”.
Warnings:
Attribute with the local name “xmlns:cc” is not serializable as XML 1.0.
The “type” attribute is unnecessary for JavaScript resources.
The “button” role is unnecessary for element “input” whose type is “submit”.
The “textbox” role is unnecessary for an “input” element that has no “list” attribute and whose type is “text”.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
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