Kultkino.ch 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”.
Attribute “allow” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete.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.
Attribute “gesture” not allowed on element “iframe” at this point.
Stray start tag “script”.
Warnings:
This document appears to be written in German but the “html” start tag has “lang="en"”. Consider using “lang="de"” (or variant) instead.
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