Gs1us.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
No space between attributes.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “title” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “button” for attribute “type” on element “a”: Subtype missing.
Attribute “rel” not allowed on element “h1” at this point.
Start tag “a” seen but an element of the same type was already open.
Stray end tag “a”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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