/**
 * 100% height layout with header and footer
 * ----------------------------------------------
 * Feel free to copy/use/change/improve
 */

html,body {
	margin:0;
	height:100%; /* needed for container min-height */
	background-image:url(bg.png);
	margin:auto;
	text-align:center;
	color:#FFF;
	font-family:Georgia, "Times New Roman", Times, serif;
}

#centro {
	position:relative;
	display:block;
	padding-top:40px;
	width:676px;
	height:566px;
	text-align:left;
	background-image:url(fundocaixa.png);
	background-repeat:no-repeat;
	top:50%;
	margin: -283px auto;
}

.titulo_01{
	padding:5px;
	font-size:30px;
	font-weight:bold;
	color:#FFF;
	background-color:#e62e12;
	position:relative;
	display:inline;
	margin-left:45px;
}

.titulo_02{
	padding:5px;
	font-size:20px;
	font-weight:bold;
	color:#FFF;
	background-color:#999999;
	position:relative;
	display:inline;
	top:10px;
	margin-left:45px;
}

.link_livro{
	margin:auto;
}

.livro{
	position:absolute;
	margin:0px;
}

.links{
	padding-top:100px;
	float:right;
}

a.professor {
	display: block;
	width: 400px;
	height: 84px;
	text-decoration: none;
	float:right;
	background: url("professor.png");
	}

a.professor:hover {
	background-position: 0 420px
	}
	
a.aluno {
	display: block;
	width: 400px;
	height: 84px;
	text-decoration: none;
	float:right;
	background: url("aluno.png");
	}

a.aluno:hover {
	background-position: 0 420px
	}
	
a.tarefas {
	display: block;
	width: 400px;
	height: 20px;
	font-size:18px;
	padding-right:20px;
	text-align:right;
	float:right;
	text-decoration:underline;
	color:#000;
	}

a.tarefas:hover {
	text-decoration:underline;
	color:#FFF;
	}
	
.logo{
	clear:both;
	float:right;
}