Terpel.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
Element “title” must not be empty.
Element “input” with attribute “type” whose value is “button” must have non-empty attribute “value”.
Duplicate ID “content”.
Element “div” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “auto” for attribute “height” on element “img”: Expected a digit but saw “a” instead.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “content” was here.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
This document appears to be written in Spanish. Consider adding “lang="es"” (or variant) to the “html” start tag.
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