Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “http://www.w3.org/1999/html” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Duplicate attribute “xmlns”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Bad value “600px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “75px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “” for attribute “id” on element “section”: An ID must not be the empty string.
Duplicate ID “”.
Attribute “align” not allowed on element “section” at this point.
Bad value “nofollow,noindex” for attribute “rel” on element “a”: The string “nofollow,noindex” is not a registered keyword.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Bad value “820px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “80px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “200px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “100%” for attribute “height” on element “img”: Expected a digit but saw “%” instead.
Bad value “auto” for attribute “height” on element “img”: Expected a digit but saw “a” instead.
Bad value “105%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Bad value “150px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “auto” for attribute “width” on element “img”: Expected a digit but saw “a” instead.
Bad value “85px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “65px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “65px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Duplicate attribute “id”.
Attribute “align” not allowed on element “header” at this point.
Attribute “align” not allowed on element “li” at this point.
Bad value “60%” for attribute “height” on element “img”: Expected a digit but saw “%” instead.
The “align” attribute on the “p” element is obsolete. Use CSS instead.
Bad value “980px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “90px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “180px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “68px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “” was here.
The value of attribute “alt” on element “img” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
Text run is not in Unicode Normalization Form C.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in Vietnamese. Consider adding “lang="vi"” (or variant) to the “html” start tag.
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