Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
The “language” attribute on the “script” element is obsolete. Use the “type” attribute instead.
Stray start tag “html”.
Start tag “head” seen but an element of the same type was already open.
A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
Attribute “leftmargin” not allowed on element “body” at this point.
Attribute “topmargin” not allowed on element “body” at this point.
Element “h2” not allowed as child of element “ul” 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.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “h1” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “li” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “count_cart”.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
The “align” attribute on the “tr” element is obsolete. Use CSS instead.
Table column 3 established by element “td” has no cells beginning in it.
Duplicate ID “box_id_page”.
Duplicate ID “placeSlide_main”.
Duplicate ID “title_page”.
Duplicate ID “placeSlide_id”.
Bad value “http://www.sieuthimaychu.vn/index.php/Thong_Tin_San_Pham/10405/IBM-39Y7386-|-920W-Power-Supply” for attribute “href” on element “a”: Illegal character in path segment: “|” is not allowed.
Bad value “/index.php/Thong_Tin_San_Pham/10405/IBM-39Y7386-|-920W-Power-Supply” for attribute “href” on element “a”: Illegal character in path segment: “|” is not allowed.
Bad value “http://www.sieuthimaychu.vn/index.php/Thong_Tin_San_Pham/10418/Tu-mang-19"-15U-D1000” for attribute “href” on element “a”: Illegal character in path segment: “"” is not allowed.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “-15u-d1000"” not allowed on element “a” at this point.
Attribute “15u-d1000” not allowed on element “a” at this point.
Attribute “"” not allowed on element “a” at this point.
Bad value “http://www.sieuthimaychu.vn/index.php/Thong_Tin_San_Pham/6655/Tu-mang-19"-32U-D1000” for attribute “href” on element “a”: Illegal character in path segment: “"” is not allowed.
Attribute “-32u-d1000"” not allowed on element “a” at this point.
Attribute “32u-d1000” not allowed on element “a” at this point.
Bad value “http://www.sieuthimaychu.vn/index.php/Thong_Tin_San_Pham/6654/Tu-mang-19"-32U-D800” for attribute “href” on element “a”: Illegal character in path segment: “"” is not allowed.
Attribute “-32u-d800"” not allowed on element “a” at this point.
Attribute “32u-d800” not allowed on element “a” at this point.
Bad value “http://www.sieuthimaychu.vn/index.php/Thong_Tin_San_Pham/3866/Tu-mang-19"-42U-D1000” for attribute “href” on element “a”: Illegal character in path segment: “"” is not allowed.
Attribute “-42u-d1000"” not allowed on element “a” at this point.
Attribute “42u-d1000” not allowed on element “a” at this point.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “rel” not allowed on element “div” at this point.
Duplicate ID “placeSlide”.
Duplicate ID “onePro_f”.
Bad value “footer” for attribute “role” on element “div”.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Consider avoiding viewport values that prevent users from resizing documents.
Empty heading.
The first occurrence of ID “count_cart” was here.
A table row was 3 columns wide and exceeded the column count established by the first row (2).
The first occurrence of ID “box_id_page” was here.
The first occurrence of ID “placeSlide_main” was here.
The first occurrence of ID “title_page” was here.
The first occurrence of ID “placeSlide_id” was here.
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.
Attribute “-15u-d1000"” is not serializable as XML 1.0.
Attribute “15u-d1000” is not serializable as XML 1.0.
Attribute “"” is not serializable as XML 1.0.
Attribute “-32u-d1000"” is not serializable as XML 1.0.
Attribute “32u-d1000” is not serializable as XML 1.0.
Attribute “-32u-d800"” is not serializable as XML 1.0.
Attribute “32u-d800” is not serializable as XML 1.0.
Attribute “-42u-d1000"” is not serializable as XML 1.0.
Attribute “42u-d1000” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “placeSlide” was here.
The first occurrence of ID “onePro_f” was here.
This document appears to be written in Vietnamese. Consider adding “lang="vi"” (or variant) to the “html” start tag.
Viet Nam VN