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.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Stray start tag “html”.
Bad value “https://www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Duplicate ID “ail_madrid_instituto_cervantes_member”.
Attribute “height” not allowed on element “table” at this point.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “align” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
Attribute “margin” not allowed on element “iframe” at this point.
Attribute “text-margin” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “align” attribute on the “iframe” element is obsolete. Use CSS instead.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
Attribute “a” not allowed on element “a” at this point.
Attribute “<” not allowed on element “a” at this point.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
Row 3 of a row group established by a “tbody” element has no cells beginning on it.
Attribute “rtl” not allowed on element “span” at this point.
Attribute “context” not allowed on element “span” at this point.
Attribute “info” not allowed on element “span” at this point.
Attribute “fn_index” not allowed on element “span” at this point.
Duplicate ID “__skype_highlight_id_right”.
Duplicate ID “__skype_highlight_id_innerText”.
The “name” attribute on the “img” element is obsolete. Use the “id” attribute instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “name” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “ail_madrid_instituto_cervantes_member” was here.
Attribute “<” is not serializable as XML 1.0.
A table row was 0 columns wide, which is less than the column count established by the first row (1).
Empty heading.
The first occurrence of ID “__skype_highlight_id_right” was here.
The first occurrence of ID “__skype_highlight_id_innerText” was here.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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