Unas.ru W3C HTML Markup Validation
HTML markup errors and warnings
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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”.
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
End tag “div” seen, but there were open elements.
Unclosed element “h1”.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate attribute “type”.
The “aria-controls” attribute must point to an element in the same document.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Empty heading.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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