Vlebooks.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “banner” role is unnecessary for element “header”.
Empty heading.
The “contentinfo” role is unnecessary for element “footer”.
The “button” role is unnecessary for element “button”.
The “form” role is unnecessary for element “form”.
Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “name” not allowed on element “div” at this point.
Bad value “” for attribute “for” on element “label”: An ID must not be the empty string.
Attribute “autocapitalize” not allowed on element “input” at this point.
Attribute “autocorrect” not allowed on element “input” at this point.
Bad value “"checked"” for attribute “checked” on element “input”.
The “for” attribute of the “label” element must refer to a non-hidden form control.
The “aria-describedby” attribute must point to an element in the same document.
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