Tutorial Internationalization Language CSS

/*Language-specific*/
:lang(af){quotes:'\201E' '\201D' '\201A' '\2019';}
:lang(ak){font-family:Lucida,"DejaVu Sans",inherit;}
:lang(ar){font-family:Tahoma 12,Nazli,KacstOne,"DejaVu Sans",inherit;}
:lang(bg){quotes:'\201E' '\201C' '\201A' '\2018';}
:lang(bn){font-family:FreeSans,MuktiNarrow,Vrinda,inherit;font-size:1.1em;line-height:1.4em;}
:lang(cs){quotes:'\201E' '\201C' '\201A' '\2018';}