/* CSS Document */
*{
	margin: 0px;
	padding:0 px;	
}

body{
	background-image: url(../images/fondo3.jpg);
	width: 100%;
	height: 100%;	
	}

#centro-contenedor{
	width:487px;
	height:455px;
	margin:auto;
	margin-top:50px;
		
	
}

#centro{
	width:487px;
	height:455px;
	margin:auto;
		
	
}

#centro4{
	display:none;
		
	
}

@media only screen and (min-width: 100px) and (max-width:700px){

#centro-contenedor{
	width:100%;
	float:left;
	margin-top:50px;
		
	
}

#centro{
	display:none;
		
	
}

#centro4{
	width:90%;
	margin:auto;
	display:block;
		
	
}

}