#btn_quienes{
	color:black;
	border: 3px double #BEDBEB;
	border-top-color: #3E7AA2;
	border-bottom: solid white;
	background-color: white;
	opacity: 1;
	-webkit-backface-visibility: hidden;
	}
/*
#middle{
	background: url('fotos/bajo_quienes2.jpg') center bottom no-repeat #fff;	
	}
	*/