* {
	margin: 0px;
	padding: 0px;
}
body {
	background-color:#888;
	vertical-align:top;
}
div#header,
div#content,
div#footer {
	width: 75%;
	text-align:center;
	margin-right:auto;
	margin-left:auto;
	vertical-align: bottom;
	padding:4px;
}
div#header {
	background:#aaa;
	border-left: 1px solid;
	border-right: 1px solid;
	border-top: 1px solid;
}
div#content {
	background:#bbb;
	border-left: 1px solid;
	border-right: 1px solid;
	min-height:400px;
}
div#footer {
	background:#aaa;
	border-left: 1px solid;
	border-right: 1px solid;
	border-bottom: 1px solid;
}