#divbackground {
width: 100%; height: 100%; top: 0; left: 0;
background: url(../img/Archivio/index.jpeg)no-repeat center top; position: fixed; z-index: -1;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}

div.centre
{
  width: 50%;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

p
{
 margin-bottom: 0px;	
}

.top-bar-section ul li {
  background: rgba(51, 51, 51, 0);
}

.top-bar-section li:not(.has-form) a:not(.button) {
	background: rgba(51, 51, 51, 0);
}