#contentedor {
	padding: 0px;
	height: 408px;
	width: 471px;
	margin-top: 0px;
	margin-right: auto;
	margin-bottom: 0px;
	margin-left: auto;
}
body {
	background-image: url(../imagenes/fondo.gif);
	background-repeat: repeat;
}

img {
 
filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(../imagenes/intro.png);
 
}