Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).
Bad value “text/html; charset=iso-8859-1” for attribute “content” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.
Bad value “title” for attribute “http-equiv” on element “meta”.
Bad value for attribute “http-equiv” on element “meta”.
Bad value “description” for attribute “http-equiv” on element “meta”.
Bad value “DC.Description” for attribute “http-equiv” on element “meta”.
The “scheme” attribute on the “meta” element is obsolete. Use only one scheme per field, or make the scheme declaration part of the value.
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
The “bgcolor” attribute on the “body” element is obsolete. Use CSS instead.
“=” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “width” attribute on the “table” element is obsolete.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The “align” attribute on the “table” element is obsolete.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The “border” attribute on the “table” element is obsolete.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.
The “bgcolor” attribute on the “tr” element is obsolete. Use CSS instead.
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
The “height” attribute on the “td” element is obsolete. Use CSS instead.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
The “font” element is obsolete. Use CSS instead.
The “bgcolor” attribute on the “td” element is obsolete. Use CSS instead.
Start tag “form” seen in “table”.
Element “form” not allowed as child of element “tr” in this context. (Suppressing further errors from this subtree.)
The “center” element is obsolete. Use CSS instead.
End tag “center” seen, but there were open elements.
Unclosed element “font”.
End tag “td” seen, but there were open elements.
Stray end tag “form”.
Stray end tag “td”.
The “bgcolor” attribute on the “table” element is obsolete. Use CSS instead.
Element “center” not allowed as child of element “font” in this context. (Suppressing further errors from this subtree.)
Attribute “cellpading” not allowed on element “table” at this point.
Table column 3 established by element “td” has no cells beginning in it.
Table columns in range 2…7 established by element “td” have no cells beginning in them.
“td” start tag in table body.
Element “center” not allowed as child of element “b” in this context. (Suppressing further errors from this subtree.)
End tag “font” violates nesting rules.
Unclosed element “center”.
Unclosed element “b”.
End tag “a” violates nesting rules.
Malformed byte sequence: “e9”.
Malformed byte sequence: “f3”.
Element “nobr” not allowed as child of element “font” in this context. (Suppressing further errors from this subtree.)
Malformed byte sequence: “fa”.
Stray end tag “font”.
Stray end tag “center”.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in Spanish. Consider adding “lang="es"” (or variant) to the “html” start tag.