Salve, mi hanno consigliato di fare la validazione W3C per migliorare la navigabilità del sito secondo gli standard prefissati. Aggiustando e modificando il mio sito mi è rimasto un solo errore da risolvere, ed è il seguente:
Come si risolve questo problema? GrazieLine 68, Column 59: document type does not allow element "html" here
<html xmlns="http://www.w3.org/1999/xhtml">
The element named above was found in a context where it is not allowed. This could mean that you have incorrectly nested elements -- such as a "style" element in the "body" section instead of inside "head" -- or two elements that overlap (which is not allowed).
One common cause for this error is the use of XHTML syntax in HTML documents. Due to HTML's rules of implicitly closed elements, this error can create cascading effects. For instance, using XHTML's "self-closing" tags for "meta" and "link" in the "head" section of a HTML document may cause the parser to infer the end of the "head" section and the beginning of the "body" section (where "link" and "meta" are not allowed; hence the reported error).