Habrahabr.ru W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
The “label” element may contain at most one “button”, “input”, “meter”, “output”, “progress”, “select”, or “textarea” descendant.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “svg” did not match the name of the current open element (“use”).
The “align” attribute on the “img” element is obsolete. Use CSS instead.
Attribute “enable-background” not allowed on element “path” at this point.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
“label” element with multiple labelable descendants.
Text run is not in Unicode Normalization Form C.
The “img” role is unnecessary for element “img”.
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