Errors:
Stray start tag “html”.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “Электромаш""” not allowed on element “meta” at this point.
Attribute “Электромаш""” not allowed on element “img” at this point.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Bad value “” for attribute “srcset” on element “img”: Must contain one or more image candidate strings.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “Акватекс",” not allowed on element “a” at this point.
Attribute “цвет” not allowed on element “a” at this point.
Attribute “медь"” not allowed on element “a” at this point.
Attribute “Акватекс",” not allowed on element “img” at this point.
Attribute “цвет” not allowed on element “img” at this point.
Attribute “медь"” not allowed on element “img” at this point.
Attribute “Акватекс",” not allowed on element “button” at this point.
Attribute “цвет” not allowed on element “button” at this point.
Attribute “медь"” not allowed on element “button” at this point.
Attribute “Электромаш",” not allowed on element “a” at this point.
Attribute “3” not allowed on element “a” at this point.
Attribute “кВт"” not allowed on element “a” at this point.
Attribute “Электромаш",” not allowed on element “img” at this point.
Attribute “3” not allowed on element “img” at this point.
Attribute “кВт"” not allowed on element “img” at this point.
Attribute “Электромаш",” not allowed on element “button” at this point.
Attribute “3” not allowed on element “button” at this point.
Attribute “кВт"” not allowed on element “button” at this point.
Attribute “Электромаш"” not allowed on element “a” at this point.
Attribute “ЭВПМ-4.5” not allowed on element “a” at this point.
Attribute “кВт."” not allowed on element “a” at this point.
Attribute “Электромаш"” not allowed on element “img” at this point.
Attribute “ЭВПМ-4.5” not allowed on element “img” at this point.
Attribute “кВт."” not allowed on element “img” at this point.
Attribute “Электромаш"” not allowed on element “button” at this point.
Attribute “ЭВПМ-4.5” not allowed on element “button” at this point.
Attribute “кВт."” not allowed on element “button” at this point.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Warnings:
Attribute “Электромаш""” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Attribute “Акватекс",” is not serializable as XML 1.0.
Attribute “медь"” is not serializable as XML 1.0.
Attribute “Электромаш",” is not serializable as XML 1.0.
Attribute “3” is not serializable as XML 1.0.
Attribute “кВт"” is not serializable as XML 1.0.
Attribute “Электромаш"” is not serializable as XML 1.0.
Attribute “кВт."” is not serializable as XML 1.0.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in Russian. Consider adding “lang="ru"” (or variant) to the “html” start tag.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Russian Federation RU