.mascara {
	width: 100%;
	background-color: #000000;
	filter:alpha(opacity=80);

	-moz-opacity: .8; 
	opacity:.8;
	z-index: 1000;
	position: absolute;
	height: 650px;
	margin-top: 0px;
	margin-right: auto;
	margin-bottom: 0px;
	margin-left: auto;
}
.cont_descargas{
	height: 90%;
	width: 90%;
	border: 1px solid #FFB9B9;
	position: absolute;
	z-index: 1001;
	background-color: #8A0000;
	padding-top: 10px;
	padding-right: 0px;
	padding-bottom: 0px;
	padding-left: 0px;
}
.close_descargas{
	height: 20px;
	width: 20px;
	position: absolute;
	z-index: 1002;
	background-color: #8A0000;
	font-weight: bold;
	color: #FFFFFF;
	font-size: 20px;
	top: 0px;
	right: 0px;	
}
.close_descargas a{
	font-size: 20px;
	text-decoration: none;
	color: #FFFFFF;
}
.close_descargas a:hover{
	font-size: 20px;
	text-decoration: none;
	color: #FF9900;
}