#principal h2{
	font-size: 36px;
	border-bottom:#ccc 2px solid;
	margin-bottom: 10px;
}
#principal h3{
	font-size:18px;
	color:#990000;
	margin-bottom: 5px;
}
#principal p{
	margin-bottom: 10px;
}
#principal p a {
	text-decoration:none;
	color:#333;
	font-weight:bold;
}

#principal p a:hover {
	text-decoration:underline;
}