Hou.edu.vn W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Bogus comment.
Attribute “value” not allowed on element “img” at this point.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “value” not allowed on element “section” at this point.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Bad character “<” after “<”. Probable cause: Unescaped “<”. Try escaping it as “<”.
The “aria-describedby” attribute must point to an element in the same document.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The document is not mappable to XML 1.0 due to a trailing hyphen in a comment.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
This document appears to be written in Vietnamese but the “html” start tag has “lang="en"”. Consider using “lang="vi"” (or variant) instead.
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