Magnatfarby.pl W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
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.
Attribute “readonly” not allowed on element “input” at this point.
Attribute “readonly” is only allowed when the input type is “date”, “datetime-local”, “email”, “month”, “number”, “password”, “search”, “tel”, “text”, “time”, “url”, or “week”.
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
Poland PL