diff -r 90e4383e2809 -r f4ff79a3e693 html.rst --- a/html.rst Sun Jun 19 19:59:21 2016 +0300 +++ b/html.rst Sun Jun 19 20:01:35 2016 +0300 @@ -52,6 +52,10 @@ W3C best practice suggest to surround corresponding text pieces in tag with ``lang`` attribute. Attribute values are from BCP 47. +It is good to set language in ``html`` tag:: + + + http://www.iana.org/assignments/language-subtag-registry/language-subtag-registry IANA registered language and country codes. Coherent with ISO codes but frequently updates.