.clienti_light
{
 position:relative;
 float:left;
 width:540px;
 padding:4px;
 background:#F7F7F7;
 line-height:17px;
}

.clienti_dark
{
 position:relative;
 float:left;
 width:540px;
 padding:4px;
 line-height:17px;
}