Profibeer.ru W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “imagetoolbar” for attribute “http-equiv” on element “meta”.
Bad value “x-rim-auto-match” for attribute “http-equiv” on element “meta”.
Bad value “true” for attribute “async” on element “script”.
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Attribute “title” not allowed on element “svg” at this point.
Duplicate attribute “onclick”.
Stray end tag “source”.
Element “img” is missing required attribute “src”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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