CSS :lang Selector
Select and style every <p> element with a lang attribute value equal to "it" (Italian):
Definition and Usage
:lang() selector is used to select elements with a lang attribute with
the specified value.
Note: The lang attribute value is most often a two-letter language code, like lang="fr" (for French), or two language codes combined, like lang="fr-ca" (for Canadian French).
The numbers in the table specifies the first browser version that fully supports the selector.