Pautina.ua W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “ua” for attribute “lang” on element “html”: The language subtag “ua” is not a valid ISO language part of a language tag.
Duplicate attribute “class”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “#ORDER-Хочу підключитися до мережі ПАВУТИНА (чекаю зворотнього зв'язку)” for attribute “href” on element “a”: Illegal character in fragment: space is not allowed.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
This document appears to be written in Ukrainian but the “html” start tag has “lang="ua"”. Consider using “lang="uk"” (or variant) instead.
Ukraine UA