Vietnammoi.vn W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad value “audience” for attribute “http-equiv” on element “meta”.
The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.
Element “input” with attribute “type” whose value is “button” must have non-empty attribute “value”.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “nav-menu”.
Attribute “rel” not allowed on element “li” at this point.
No “p” element in scope but a “p” end tag seen.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
Text run is not in Unicode Normalization Form C.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The value of attribute “title” 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 “h3” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
The first occurrence of ID “nav-menu” was here.
This document appears to be written in Vietnamese. Consider adding “lang="vi"” (or variant) to the “html” start tag.
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