body {
	background-color: black; 
	color: gray;
	font-family: Arial;
	font-size: 10pt;
	text-align:center;
}

#div_parent {
	margin: 30px auto;
	text-align: left;
	width: 600px;
}

a { color:#cccccc; text-decoration: underline; }
a:hover { color:white; }
aa:visited {color: black;}