Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Attribute “xmlns:fb” not allowed here.
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
Internal encoding declaration “iso-8859-15” disagrees with the actual encoding of the document (“utf-8”).
Bad value “imagetoolbar” for attribute “http-equiv” on element “meta”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad value “Content-Script-Type” for attribute “http-equiv” on element “meta”.
Bad value “Content-Style-Type” for attribute “http-equiv” on element “meta”.
Malformed byte sequence: “ed”.
Malformed byte sequence: “f3”.
Malformed byte sequence: “e1”.
Malformed byte sequence: “e9”.
Malformed byte sequence: “fa”.
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
Duplicate ID “search-order-user”.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Bad value “if (this.value == ''Introduce el número'') this.value = ''; else this.select();” for attribute “onfocus” on element “input”: missing ) after condition
Element “img” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Bad value “true” for attribute “async” on element “script”.
Malformed byte sequence: “cd”.
Malformed byte sequence: “da”.
Malformed byte sequence: “f1”.
Malformed byte sequence: “bf”.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The first occurrence of ID “search-order-user” was here.
This document appears to be written in Spanish. Consider adding “lang="es"” (or variant) to the “html” start tag.
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