.leftnav {
	padding:0;
	float:left;
	width:140px;
	padding-top:20px;
	height:300px;
	}
.leftnav ul {
	padding-left:0;	
	margin:auto;
	list-style: none;
	border-bottom:1px solid gray;
	}
.leftnav ul li {
	text-align:center;
	display:block;
	padding:5px;
	margin:auto;
	background-color:lightgray;
	border:1px solid gray;
	border-bottom:none;
	}
.maincontent {
	margin-left:150px;
	}