* { 
padding: 0; 
margin: 0; 
}
body {
 font-family: Arial, Helvetica, sans-serif;
 font-size: 13px;
 margin:0 auto;
 text-align:center;
}
#wrapper { 
 margin: 0 auto;
 width: 974px;
 text-align:left;
}
#colonne {
 overflow: auto; 
 width: 100%;
}
#header {
 width: 974px;
 height: 130px;
}
#colonnasx { 
 width: 163px;
 height:100%;
 float: left;
 background: url('../immagini/ombra_bg_sx.gif') repeat-y top right;
}
#contenuto { 
 float: left;
 width: 784px;
}
#colonnadx { 
 padding: 0px;
 width: 27px;
 float: left;
}
#footer { 
 width: 974px;
 clear: both;
}
.clear { 
clear: both; 
background: none; 
}