Errors:
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:fb” not allowed here.
Bad value “Content-Style-Type” for attribute “http-equiv” on element “meta”.
Bad value “expires” for attribute “http-equiv” on element “meta”.
Bad value “pragma” for attribute “http-equiv” on element “meta”.
Bad value “cache-control” for attribute “http-equiv” on element “meta”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “true” for attribute “async” on element “script”.
Duplicate attribute “class”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “position” not allowed on element “div” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “center” element is obsolete. Use CSS instead.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “{” instead.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The “type” attribute is unnecessary for JavaScript resources.
Consider avoiding viewport values that prevent users from resizing documents.
The “charset” attribute on the “script” element is obsolete.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Poland PL