Spotlightenglish.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Duplicate attribute “rel”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “type” not allowed on element “audio” at this point.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “133px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “player”.
End tag “section” seen, but there were open elements.
Unclosed element “div”.
End tag “div” seen, but there were open elements.
Unclosed element “section”.
Stray end tag “section”.
Stray end tag “div”.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Empty heading.
The first occurrence of ID “player” was here.
The “form” role is unnecessary for element “form”.
The “type” attribute is unnecessary for JavaScript resources.
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