body {
	background-color:#033; /* azul petróleo */
	margin:0;
	font-family:sans-serif,arial;/* muda a letra */
	}
h1 {
	margin:0; /* tira a margem */
	text-align:center;
	background-color:#C90; /* laranja */
	padding:30px;	
	} 

#container{
	background-color:#FFF; /* cor branca */
	width:860px; /* px é pixel */
	margin:auto; /* serve para centralizar a caixa */
	}
nav {
	text-align:center;
	}
nav a {
	font-size:24px;
	text-decoration:none;
	margin:0 15px;
	background: linear-gradient(to bottom, #fc0 0%, #630 100%);
	width:90px;
	display:inline-block;
	color:#FFF;
	padding:10px;
	border-radius:15px;
	border:solid 3px #999;
	box-shadow: 5px 5px 8px 2px #666;
	font-weight:bold;
	text-shadow: 2px 2px 5px #000;
}	
nav a:hover{
	background: linear-gradient(to top, #fc0 0%, #630 100%);
	color:#000;
}	
a {outline:none;}