Doorbinplus.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The element “button” must not appear as a descendant of the “a” element.
Attribute “href” not allowed on element “button” at this point.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Stray start tag “script”.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
The “main” role is unnecessary for element “main”.
The “type” attribute is unnecessary for JavaScript resources.
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