html, body {
	width: 100%;
	height: 100%;
	margin: 0px;
	padding: 0px;
	background-color: #383431;
}

.table {
	width: 100%;
	height: 100%;
	display: table;
}

.cell {
vertical-align: middle;
display: table-cell;
_position: absolute;
_top: 50%;
}

.conteudo {
	margin: auto;
	padding: 20px;
	_position: relative;
	_top: -50%;
	border-top-width: 0px;
	border-right-width: 0px;
	border-bottom-width: 0px;
	border-left-width: 0px;
	border-top-style: none;
	border-right-style: none;
	border-bottom-style: none;
	border-left-style: none;
	background-image: url(images/back2.jpg);
	background-repeat: no-repeat;
	background-attachment: fixed;
	background-position: 0px 50px;
	height: 450px;
}
.conteudo2 {
	width: auto;
	height: 450px;
}