ul#spotlight{width: 590px;height: 180px;position: relative; font: 76%/1.3 Arial,sans-serif;}
ul#spotlight,ul#spotlight li{margin: 0;padding: 0;list-style: none; text-align:center;}
ul#spotlight a{color: #666}
ul#spotlight li,ul#spotlight span{position: absolute;
    top: 0;left: 0;width: 280px;height: 180px}
ul#spotlight li#sl2{left: 310px;}
ul#spotlight span{background: url(../../images/homebox_roll.jpg);z-index: 99;}
ul#spotlight li#sl2 span{background-position: -310px 0}

/*parte per il rollover*/
ul#spotlight li#sl1 a:hover span{background-position: 0 -180px}
ul#spotlight li#sl2 a:hover span{background-position: -310px -180px}