Errors:
Attribute “content” not allowed on element “meta” at this point.
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.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Attribute “meyhod” not allowed on element “form” at this point.
Bad value “e-mail” for attribute “type” on element “input”.
Attribute “placeholder” is only allowed when the input type is “email”, “number”, “password”, “search”, “tel”, “text”, or “url”.
Attribute “required” is only allowed when the input type is “checkbox”, “date”, “datetime-local”, “email”, “file”, “month”, “number”, “password”, “radio”, “search”, “tel”, “text”, “time”, “url”, or “week”.
Row 2 of a row group established by a “tbody” element has no cells beginning on it.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
A table row was 0 columns wide, which is less than the column count established by the first row (1).
This document appears to be written in English but the “html” start tag has “lang="ru"”. Consider using “lang="en"” (or variant) instead.
Brazil BR