Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
Internal encoding declaration “windows-1252” disagrees with the actual encoding of the document (“utf-8”).
A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Malformed byte sequence: “e1”.
Element “fb:like” not allowed as child of element “li” in this context. (Suppressing further errors from this subtree.)
Element “g:plusone” not allowed as child of element “li” in this context. (Suppressing further errors from this subtree.)
Attribute “rel” not allowed on element “li” at this point.
Attribute “idsub” not allowed on element “li” at this point.
The string following “&” was interpreted as a character reference. (“&” probably should have been escaped as “&”.)
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “b8487244a9a11e3db272dc6a1dd4c8a5” for attribute “accesskey” on element “input”: Key label has multiple characters. Each key label must be a single character.
Element “object” is missing one or more of the following attributes: “data”, “type”.
Stray end tag “embed”.
Bad value “styles1” for attribute “rel” on element “a”: The string “styles1” is not a registered keyword.
Bad value “styles2” for attribute “rel” on element “a”: The string “styles2” is not a registered keyword.
Warnings:
Element name “fb:like” cannot be represented as XML 1.0.
Element name “g:plusone” cannot be represented as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
This document appears to be written in Vietnamese. Consider adding “lang="vi"” (or variant) to the “html” start tag.
Viet Nam VN