Hygi.de W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
Bad value “Expires” for attribute “http-equiv” on element “meta”.
CSS: “font-size”: only “0” can be a “unit”. You must put a unit after your number.
CSS: Parse Error.
Attribute “name” not allowed on element “link” at this point.
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
Element “div” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
Element “notifications” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “modal” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “auto” for attribute “width” on element “img”: Expected a digit but saw “a” instead.
Warnings:
The “banner” role is unnecessary for element “header”.
The “main” role is unnecessary for element “main”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Attribute “:class” is not serializable as XML 1.0.
Attribute “@click” is not serializable as XML 1.0.
The “type” attribute is unnecessary for JavaScript resources.
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