Errors:
Legacy encoding “windows-1251” used. Documents must use UTF-8.
Bad value “text/html; charset=windows-1251” for attribute “content” on element “meta”: “charset=” must be followed by “utf-8”.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Internal encoding declaration “utf-8” disagrees with the actual encoding of the document (“windows-1251”).
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
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 “” for attribute “id” on element “section”: An ID must not be the empty string.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
End tag “h2” seen, but there were open elements.
Duplicate ID “features”.
Bad value “mailto: maouschool48@eduklgd.ru” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Bad value “mailto: maouschool48@edu.klgd.ru” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “bx_3218110189_1447"” not allowed on element “div” at this point.
Attribute “bx_3218110189_1418"” not allowed on element “div” at this point.
Attribute “bx_3218110189_1413"” not allowed on element “div” at this point.
Attribute “bx_651765591_1461"” not allowed on element “div” at this point.
Attribute “bx_651765591_1172"” not allowed on element “div” at this point.
Attribute “bx_651765591_1424"” not allowed on element “div” at this point.
Duplicate ID “team”.
Attribute “text-align” not allowed on element “div” at this point.
Duplicate ID “buyNow”.
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
No “li” element in scope but a “li” end tag seen.
End tag “div” seen, but there were open elements.
Unclosed element “ul”.
Duplicate ID “”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
End tag had attributes.
Unclosed element “footer”.
Stray end tag “footer”.
Stray end tag “div”.
Attribute “name” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “features” was here.
Empty heading.
Attribute “bx_3218110189_1447"” is not serializable as XML 1.0.
Attribute “bx_3218110189_1418"” is not serializable as XML 1.0.
Attribute “bx_3218110189_1413"” is not serializable as XML 1.0.
Attribute “bx_651765591_1461"” is not serializable as XML 1.0.
Attribute “bx_651765591_1172"” is not serializable as XML 1.0.
Attribute “bx_651765591_1424"” is not serializable as XML 1.0.
The first occurrence of ID “team” was here.
The first occurrence of ID “buyNow” was here.
The first occurrence of ID “” was here.
This document appears to be written in Russian but the “html” start tag has “lang="en"”. Consider using “lang="ru"” (or variant) instead.