styles.css

.ratingOverlay {
    width: 100px;
    height: 50px;
    position: absolute;
    bottom: 3px;
    right: 3px;
    opacity: 0.9;
}

.rateBox {
    width: 50px;
    height: 50px;

    background: url('chrome-extension://__MSG_@@extension_id__/images/rt_lg_bw.png') no-repeat;

    text-align: center;
    vertical-align: middle;
    
    line-height: 60px;

    font-size: 150%;
    font-weight: bold;
    
    float: right;
}

.fresh {
   color: #eee;
   background: url('chrome-extension://__MSG_@@extension_id__/images/rt_lg.png') no-repeat;
   line-height: 65px;
   background-position: 0px 0px;
}

.rotten {
    color: #111;
    line-height: 55px;
    background-position: 0px -50px;
}    

.upright {
    color: #111;
    line-height: 65px;
    background-position: 0px -150px;
}

.spilt {
    color: #111;
    line-height: 55px;
    background-position: 0px -250px;
}