body
{
	margin: 0;
	padding: 0;
	font-family: Helvetica, Tahoma, Trebuchet MS, Arial;
}
#mosaico
{
	width: 900px;
	background: #FFF;
	margin: 20px auto;
	padding: 10px;
}
#mosaico img
{
	position: relative;
	border: 0;
	margin: 10px;
}