Equivalenza.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “https://www.equivalenza.com/media/wysiwyg/WEB Equivalenza_2018.03.16_Header 241_ES.JPG” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
End tag “div” seen, but there were open elements.
Unclosed element “footer”.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
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).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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