Stud.kz W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
The “center” element is obsolete. Use CSS instead.
End tag “br”.
Bad value “button” for attribute “type” on element “a”: Subtype missing.
Element “noindex” not allowed as child of element “td” in this context. (Suppressing further errors from this subtree.)
Attribute “rel” not allowed on element “div” at this point.
Attribute “rel” not allowed on element “img” 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.
Bad value “form_button” for attribute “rel” on element “a”: The string “form_button” is not a registered keyword.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
This document appears to be written in Kazakh. Consider adding “lang="kk"” (or variant) to the “html” start tag.
Kazakhstan KZ