Sb24.ir W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include more than one “meta” element with a “charset” attribute.
The element “header” must not appear as a descendant of the “header” element.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “menu”.
Duplicate ID “nav”.
End tag “header” seen, but there were open elements.
Unclosed element “div”.
The “center” element is obsolete. Use CSS instead.
The element “footer” must not appear as a descendant of the “footer” element.
Bad value “_blank” for attribute “type” on element “a”: Subtype missing.
Duplicate ID “msmleft”.
Warnings:
The first occurrence of ID “menu” was here.
The first occurrence of ID “nav” was here.
The first occurrence of ID “msmleft” was here.
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