Marginalen.se W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad value “presentational” for attribute “role” on element “div”.
Bad value “presentational” for attribute “role” on element “svg”.
No space between attributes.
Duplicate ID “q”.
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Attribute “min” not allowed on element “input” at this point.
Attribute “max” not allowed on element “input” at this point.
Attribute “step” not allowed on element “input” at this point.
Bad value “javascript:void” for attribute “href” on element “a”: syntax error
Duplicate attribute “href”.
No “p” element in scope but a “p” end tag seen.
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
The “aria-controls” attribute must point to an element in the same document.
Warnings:
The first occurrence of ID “q” was here.
The “main” role is unnecessary for element “main”.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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