Mts.ru W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Element “div” not allowed as child of element “h5” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
No “li” element in scope but a “li” end tag seen.
Bad value “280px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “50px” for attribute “height” on element “iframe”: Expected a digit but saw “p” 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The “frameborder” attribute on the “iframe” element is obsolete.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The “scrolling” attribute on the “iframe” element is obsolete.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The “allowtransparency” attribute on the “iframe” element is obsolete.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.
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