Univ-ouargla.dz W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “null” for attribute “media” on element “link”: Media query ended prematurely.
Attribute “attribs” not allowed on element “link” at this point.
The “nowrap” attribute on the “td” element is obsolete. Use CSS instead.
The “name” attribute on the “img” element is obsolete. Use the “id” attribute instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “data-” not allowed on element “a” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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