emmetio/emmet — pull request #222 by pustovalov (2013-04-28 14:58:43+00:00)
Title: add property to "letter-spacing"

http://htmlbook.ru/css/letter-spacing
http://www.w3schools.com/cssref/pr_text_letter-spacing.asp
https://developer.mozilla.org/ru/docs/CSS/letter-spacing