Reaktor.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
No space between attributes.
End tag “svg” did not match the name of the current open element (“g”).
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Attribute “href” not allowed on element “button” at this point.
Duplicate ID “page-intro”.
Warnings:
The “navigation” role is unnecessary for element “nav”.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
The first occurrence of ID “page-intro” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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