Rodoswet.ru W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “//www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Attribute “rel” not allowed on element “img” at this point.
Bad value “155px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “483.38461538462px” for attribute “height” on element “iframe”: Expected a digit but saw “.” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “//schema.org/BlogPosting” for attribute “itemtype” on element “div”: The string “//schema.org/BlogPosting” is not an absolute URL.
Stray end tag “div”.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
Potentially bad value “allow-scripts allow-same-origin allow-presentation allow-popups” for attribute “sandbox” on element “iframe”: Setting both “allow-scripts” and “allow-same-origin” is not recommended, because it effectively enables an embedded page to break out of all sandboxing.
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