Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “VN” for attribute “lang” on element “html”: The language subtag “vn” is not a valid ISO language part of a language tag.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Attribute “value” not allowed on element “input” at this point.
Element “input” is missing required attribute “alt”.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Bad value “wifi viettel” for attribute “id” on element “a”: An ID must not contain whitespace.
Attribute “"rel” not allowed on element “a” at this point.
Bad value “lắp mạng viettel” for attribute “id” on element “a”: An ID must not contain whitespace.
Bad value “sự kiện gia lai, su kien gia lai” for attribute “id” on element “a”: An ID must not contain whitespace.
Bad value “tiếng kẻng, tieng keng” for attribute “id” on element “a”: An ID must not contain whitespace.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
CSS: “background”: Parse Error.
CSS: “background-color”: Too many values or values are not recognized.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
The “font” element is obsolete. Use CSS instead.
Element “div” not allowed as child of element “ol” in this context. (Suppressing further errors from this subtree.)
End tag “s” violates nesting rules.
No “i” element in scope but a “i” end tag seen.
Stray end tag “div”.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
The “language” attribute on the “script” element is obsolete. Use the “type” attribute instead.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Attribute “"rel” is not serializable as XML 1.0.
The “type” attribute for the “style” element is not needed and should be omitted.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The value of attribute “href” on element “a” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
The value of attribute “title” on element “a” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
Text run is not in Unicode Normalization Form C.
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