Cnrs.edu.lb 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Using the “meta” element to specify the document-wide default language is obsolete.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.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
Element “link” is missing one or more of the following attributes: “href”, “resource”.
Attribute “dataid” not allowed on element “input” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “h5” seen, but there were open elements.
The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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