Govoyagin.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:fb” not allowed here.
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
Bad value “content-style-type” for attribute “http-equiv” on element “meta”.
Bad value “content-script-type” for attribute “http-equiv” on element “meta”.
Bad value “1600px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
The element “a” must not appear as a descendant of the “button” element.
Element “img” is missing required attribute “src”.
Start tag “a” seen but an element of the same type was already open.
Stray end tag “a”.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
Attribute “async” not allowed on element “link” at this point.
Attribute “defer” not allowed on element “link” at this point.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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