Optagelse.dk W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Duplicate ID “main”.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
Attribute “_blank” not allowed on element “a” at this point.
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
Warnings:
The first occurrence of ID “main” was here.
The “navigation” role is unnecessary for element “nav”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “article” role is unnecessary for element “article”.
The “complementary” role is unnecessary for element “aside”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Denmark DK