Nsmb.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “” for attribute “width” on element “img”: The empty string is not a valid non-negative integer.
Bad value “” for attribute “height” on element “img”: The empty string is not a valid non-negative integer.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No “li” element in scope but a “li” end tag seen.
Element “author” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
End tag “h1” seen, but there were open elements.
Unclosed element “a”.
End tag “div” seen, but there were open elements.
Start tag “a” seen but an element of the same type was already open.
Duplicate ID “mc-embedded-subscribe-form”.
Duplicate ID “mce-EMAIL”.
Duplicate ID “mc-embedded-subscribe”.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “mc-embedded-subscribe-form” was here.
The first occurrence of ID “mce-EMAIL” was here.
The first occurrence of ID “mc-embedded-subscribe” was here.
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