Lipetsknews.ru W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
Bad value “cleartype” for attribute “http-equiv” on element “meta”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
Attribute “0” not allowed on element “form” at this point.
Attribute “datatype” not allowed on element “a” at this point.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The “banner” role is unnecessary for element “header”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Attribute “0” is not serializable as XML 1.0.
The “navigation” role is unnecessary for element “nav”.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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