hover doesn't work on live site, though on localhost it's OK

[schel4ok]

in \themes\klimat-prestige\css\product.css I have this code

.feature_odd{background-color: #ffffff;}
.feature_even{background-color: #F1F2F4;}
.feature_odd:hover, .feature_even:hover{color:#ffffff; background-color: #808080;}

On localhost it works just fine, but on live site it is different - no hover effect.
Live site address is www.klimat-prestige.ru
I can't understand why?
Can anybody help me?

[Arj1]

Hover works for me, using firefox 3.6.16

[schel4ok]

sorry I fixed it yesterday evening after this topic has been posted.
I just didn't post message about it yet.

So the problem was in Preferences > Performance
High risk HTML compression was on.

This defeat hover effect. Now it's OK.