Warnings:
Text run is not in Unicode Normalization Form C.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Empty heading.
This document appears to be written in Vietnamese. Consider adding “lang="vi"” (or variant) to the “html” start tag.
Errors:
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Bad value “36” for attribute “rel” on element “a”: The string “36” is not a registered keyword.
Attribute “tag” not allowed on element “a” at this point.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “49” for attribute “rel” on element “a”: The string “49” is not a registered keyword.
Bad value “47” for attribute “rel” on element “a”: The string “47” is not a registered keyword.
Attribute “rel” not allowed on element “span” at this point.
Attribute “tag” not allowed on element “span” at this point.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Viet Nam VN