#columnas-envoltorio {
	clear: both;
	margin: 2px 0px 2px 0px;
}
#columna-derecha {
	clear: left;
	float: right;
	margin: 2px 0px 2px 0px;
	width: 260px; 
	padding: 0;
	letter-spacing: 0em;
}

#columna-centro {
	margin: 2px 270px 2px 10px;
}

#pagina-fin-envoltorio {
	position: relative;
	clear: both;
	padding: 5px 0px 25px 0px;
}

#pagina-fin {
	position: relative;
	padding: 0;
 	border-top: 2px solid #777; 
	font-size: 11px;
	text-align: center;
 	height: 16px; 
}