As well as specifying the language of a webpage on the whole, it is also important to specify any changes in the language of a webpage.
Specify the language of a webpage by providing the "lang" and/or "xml:lang" attribute on the element in which the change of language occurs (e.g. a <blockquote>
element).
//Specifying the language of a quotation is French, using the "lang" and "xml:lang" attribute of the <blockquote> element
<blockquote xml:lang="fr">
<p>
Il s'agit de la traduction d'un bloc de texte en français.
</p>
</blockquote>