Dominios.es W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Element “style” not allowed as child of element “section” in this context. (Suppressing further errors from this subtree.)
Attribute “seamless” not allowed on element “iframe” at this point.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “datatype” not allowed on element “span” at this point.
Attribute “content” not allowed on element “span” at this point.
Attribute “st_url” not allowed on element “span” at this point.
Attribute “st_title” not allowed on element “span” at this point.
Attribute “st_via” not allowed on element “span” at this point.
Attribute “st_username” not allowed on element “span” at this point.
Attribute “height” not allowed on element “a” at this point.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
The “banner” role is unnecessary for element “header”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “navigation” role is unnecessary for element “nav”.
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