Errors:
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
The “version” attribute on the “html” element is obsolete. You can safely omit it.
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “logo-container”.
Duplicate ID “menu-container”.
Duplicate ID “banner-container”.
Duplicate ID “content-wrapper”.
Duplicate ID “content-container”.
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
Attribute “a” not allowed on element “a” at this point.
Duplicate ID “second_preface-container”.
Duplicate ID “footer-container”.
Element “div” not allowed as child of element “noscript” in this context. (Suppressing further errors from this subtree.)
Warnings:
The “type” attribute for the “style” element is not needed and should be omitted.
The “type” attribute is unnecessary for JavaScript resources.
The “form” role is unnecessary for element “form”.
The first occurrence of ID “logo-container” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “menu-container” was here.
The first occurrence of ID “banner-container” was here.
The first occurrence of ID “content-wrapper” was here.
The first occurrence of ID “content-container” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “second_preface-container” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “footer-container” was here.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
Malaysia MY