Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
Stray doctype.
Bad value “PAGE-ENTER” for attribute “http-equiv” on element “meta”.
Attribute “itemprop” not allowed on element “meta” at this point.
Element “meta” is missing required attribute “content”.
The “center” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
Attribute “containerid” not allowed on element “a” at this point.
Attribute “cookieid” not allowed on element “a” at this point.
Table columns in range 2…3 established by element “td” have no cells beginning in them.
Table columns in range 3…5 established by element “td” have no cells beginning in them.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
“td” start tag in table body.
The “align” attribute on the “table” element is obsolete. Use CSS instead.
Row 1 of a row group established by a “tbody” element has no cells beginning on it.
Attribute “valign” not allowed on element “div” at this point.
Duplicate ID “tieude_bac”.
Duplicate ID “cssmenu”.
Bad value “148px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “223px” for attribute “width” on element “img”: Expected a digit but saw “p” 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 “/Portals/0/2018/20180306_Cong su Nhat1.JPG” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Table column 5 established by element “td” has no cells beginning in it.
Table column 2 established by element “td” has no cells beginning in it.
The “height” attribute on the “td” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
The “hspace” attribute on the “img” element is obsolete. Use CSS instead.
Table column 3 established by element “td” has no cells beginning in it.
Forbidden code point U+0011.
Forbidden code point U+0012.
Duplicate ID “fb-root”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
A table row was 5 columns wide and exceeded the column count established by the first row (0).
The first occurrence of ID “tieude_bac” was here.
The first occurrence of ID “cssmenu” was here.
A table row was 4 columns wide and exceeded the column count established by the first row (0).
A table row was 1 columns wide, which is less than the column count established by the first row (2).
The first occurrence of ID “fb-root” was here.
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