Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Attribute “encoding” not allowed on element “script” at this point.
Bad value “” for attribute “id” on element “body”: An ID must not be the empty string.
Duplicate ID “Слой_1”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “https://www.w3.org/2000/svg” for the attribute “xmlns” (only “http://www.w3.org/2000/svg” permitted here).
Bad value “https://www.w3.org/1999/xlink” for the attribute “xmlns:link” (only “http://www.w3.org/1999/xlink” permitted here).
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “href” not allowed on element “button” at this point.
Attribute “value” not allowed on element “textarea” at this point.
End tag “div” seen, but there were open elements.
Unclosed element “span”.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “Большевик""” not allowed on element “img” at this point.
Duplicate ID “wide-form”.
Warnings:
The first occurrence of ID “Слой_1” was here.
Attribute “xmlns” is not serializable as XML 1.0.
Attribute “xmlns:xlink” with a value other than “http://www.w3.org/1999/xlink” is not serializable as XML 1.0 without changing document semantics.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Attribute “Большевик""” is not serializable as XML 1.0.
The first occurrence of ID “wide-form” was here.
This document appears to be written in Russian. Consider adding “lang="ru"” (or variant) to the “html” start tag.
Russian Federation RU