*{text-align:justify;}
body{
	font-family:Helvetica, sans;
	font-size:14px;
	width:51em;
	margin:0 auto;
	line-height:2.5ex;
}
dt{ margin-top:1ex; }
a{	text-decoration:none;}
td:first-child{
	vertical-align:top;
	padding-right:5em;
}
#menu a { color:blue;}
th{
	background:#EEE;
	width:5em;
}
th[colspan='3']{
	background:#BBB;
	text-align:center;
}

th[colspan='4']{
	background:#BBB;
	text-align:center;
}

table{ 
	width:95%;
	margin:0 auto;
}

body>header>nav,body>footer{
	border-top:1px solid black;
	border-bottom:1px solid black;
}

body>header>nav>details{
	font-family:monospace;
	text-align:center;
}
body>header>nav>details>a:hover{
	background-color:#D8D8D8;
}

body>footer{
	text-align:center;
	font-weight:thin;
	font-family:monospace;
}