Errors:
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
Bad value “Expires” for attribute “http-equiv” on element “meta”.
A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.
Bad value “screen, projection, tty, tv, print” for attribute “media” on element “style”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.
Attribute “disabled” not allowed on element “link” at this point.
Stray start tag “td”.
Stray end tag “td”.
Attribute “rel” not allowed on element “div” at this point.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “100px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “35px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Duplicate ID “feedback_simple”.
Warnings:
Empty heading.
The first occurrence of ID “feedback_simple” was here.
This document appears to be written in Polish. Consider adding “lang="pl"” (or variant) to the “html” start tag.
Poland PL