body{
font-family: Trebuchet ms;
text-align:center;
margin:0;
padding:0;
background: #cbe7e7;
}

a {
color: #003366;
}

.contenitore{
width: 900px;
text-align:left;
background:white;
padding:20px;
border-right:20px solid #9ebfcb;
border-left:20px solid #9ebfcb;
border-bottom:20px solid #9ebfcb;
margin:0 auto;
}

.testata{
width: 900px;
height: 153px;
background: url(immagini/header.jpg);
}

body h3 {
font-size: 16px;
color: #003366;
}

body ul {
list-style: square;
}