Ldxh.edu.vn W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Attribute “xmlns:fb” not allowed here.
Bad value “handheld” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “rOtherNews”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “dofollow” for attribute “rel” on element “a”: The string “dofollow” is not a registered keyword.
Bad value “tel:(028) 3883 7801 Phòng ĐT: 108, 109” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Bad value “http://” for attribute “href” on element “a”: Invalid host: empty host.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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.
The first occurrence of ID “rOtherNews” was here.
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