Dolcarevolucio.cat W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “div” not allowed as child of element “h4” in this context. (Suppressing further errors from this subtree.)
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “big” element is obsolete. Use CSS instead.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “base” not allowed on element “div” at this point.
Attribute “href” not allowed on element “span” at this point.
Duplicate ID “style”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “alt” not allowed on element “script” at this point.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The “banner” role is unnecessary for element “header”.
Empty heading.
The first occurrence of ID “style” was here.
The “contentinfo” role is unnecessary for element “footer”.
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