body {
	font-family: "trebuchet MS"; sans-serif;
	font-size: 10pt;
	color: #aaa;
	background-color: #000;
}

#contenedor {
	width: 400px;
	height: 200px;
	position: absolute;
	top: 50%;
	left: 50%;
	margin-top: -100px;
	margin-left: -200px;
}

a {
	text-decoration: none;
	color: #aaa;
}

a:hover {
	color: white;
}