Wrong property found?

"[email protected]" <[email protected]> Thu, 27 Feb 2014 11:39:42 +0100

Newsgroups	gmane.org.w3c.validator.css
Message-ID	<CAFP=uzMrqxXcNW3XgjpaoyLRNwf3LrnndLb2hvHD+6WCQSYAtg@mail.gmail.com>

Hi,

I found out that error reported for some css file is

71 #glavna - wider is not a font-stretch value : wider

But I can't find any "font-stretch" property in my css file?

http://www.zvrkanimator.com/css/stil.css

BR,
Ivan Zivkovic