What steps will reproduce the problem?

1. Create a input.css file:
---------------
#first, #second, #third {
    width: 100px;
    height: 100px;
    color: #ff0000;
    background-color: #00ff00;
}
#second {
    width: 105px;
}
---------------

2. Run: java -jar closure-stylesheets.jar --output-file output.css input.css

What is the expected output? What do you see instead?

Expected (and YUI Compressor achieves this), 100 bytes:
---------------
#first,#second,#third{width:100px;height:100px;color:#f00;background-color:#0f0}#second{width:105px}
---------------

With Closure I get a 204 byte file instead (original was 138!):
---------------
#first{width:100px;height:100px;color:#f00;background-color:#0f0}#second{height:100px;color:#f00;background-color:#0f0}#third{width:100px;height:100px;color:#f00;background-color:#0f0}#second{width:105px}
---------------

What version of the product are you using? On what operating system?

I'm using the initial release, SHA1 5d8092ec7287f8b05b41ff71f52ff2dc0576f414

Windows 7 64bit SP1

Please provide any additional information below.

This sucks big time.