The character encoding of an HTML document was declared using the XML declaration syntax. This is non-conforming, and declaring the encoding using a meta tag at the start of the head part is more efficient.
Le codification de characteres de un documento HTML ha essite declarate usante le syntaxe de declaration XML. Isto non es conforme, e declarar le codification per un meta-etiquetta al initio del parte ‘head’ es plus efficiente.