Onrobot.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
Attribute “<br” not allowed on element “body” at this point.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Attribute “x-ms-format-detection” not allowed on element “div” at this point.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Attribute “allow” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “type” not allowed on element “span” at this point.
Warnings:
Attribute “<br” is not serializable as XML 1.0.
This document appears to be written in English but the “html” start tag has “lang="da-DK"”. Consider using “lang="en"” (or variant) instead.
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