Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
The “scheme” attribute on the “meta” element is obsolete. Use only one scheme per field, or make the scheme declaration part of the value.
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.
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
Attribute “initial-scale” not allowed on element “meta” at this point.
The “align” attribute on the “h1” element is obsolete. Use CSS instead.
The “align” attribute on the “h2” element is obsolete. Use CSS instead.
The “center” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
Element “header” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Stray end tag “td”.
Stray start tag “td”.
Stray start tag “tbody”.
Stray start tag “tr”.
Stray end tag “tr”.
Stray end tag “tbody”.
Stray end tag “table”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “font” element is obsolete. Use CSS instead.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “font” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “big” element is obsolete. Use CSS instead.
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Text not allowed in element “ul” in this context.
Element “strong” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “g:plusone” not allowed as child of element “big” in this context. (Suppressing further errors from this subtree.)
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Element name “g:plusone” cannot be represented as XML 1.0.
This document appears to be written in Spanish. Consider adding “lang="es"” (or variant) to the “html” start tag.
Spain ES