Errors:
Bad value “vn” for attribute “lang” on element “html”: The language subtag “vn” is not a valid ISO language part of a language tag.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad start tag in “img” in “head”.
Stray end tag “noscript”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “{” instead.
End tag “li” seen, but there were open elements.
Unclosed element “div”.
Attribute “name” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
Attribute “href” not allowed on element “div” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “img” is missing required attribute “src”.
Attribute “rel” not allowed on element “li” at this point.
End tag “br”.
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “h3” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Warnings:
Empty heading.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
This document appears to be written in Vietnamese but the “html” start tag has “lang="vn"”. Consider using “lang="vi"” (or variant) instead.
Viet Nam VN