.ra {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 14px;
	font-style: normal;
	font-weight: bolder;
	color: #FFFFCC;
	background-image: url(imagenes/fondonat.jpg);
	height: auto;
	width: auto;
	line-height: normal;
	font-variant: normal;
	text-transform: capitalize;
	background-position: center center;
	margin: auto;
	padding: 5px;
	border-top: medium outset #DCBAA0;
	border-right: medium outset #D0B9B9;
	border-bottom: medium outset #B07C4D;
	border-left: medium outset #7B614F;
	list-style-type: none;
	list-style-position: inside;
	list-style-image: none;
	vertical-align: top;
}
.vacio {
	border-top: thick ridge #A09694;
	border-right: thick ridge #A09694;
	border-bottom: thick ridge #C3B6B0;
	border-left: thick ridge #A09694;
}