Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Element “input” with attribute “type” whose value is “button” must have non-empty attribute “value”.
Bad value “http:” for attribute “href” on element “a”: Expected a slash ("/").
Attribute “www.archbronconeumol.org” not allowed on element “a” at this point.
The “align” attribute on the “p” element is obsolete. Use CSS instead.
Stray end tag “span”.
Duplicate ID “logo”.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
Saw a “form” start tag, but there was already an active “form” element. Nested forms are not allowed. Ignoring the tag.
End tag “div” seen, but there were open elements.
Unclosed element “form”.
Duplicate attribute “target”.
Bad value “banner profesional” for attribute “id” on element “a”: An ID must not contain whitespace.
Stray end tag “div”.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “logo” was here.
This document appears to be written in Spanish. Consider adding “lang="es"” (or variant) to the “html” start tag.
Mexico MX