#caja_musica {
	position:absolute;
	width:30px;
	height:30px;
	z-index:1;
	left: 741px;
	top: -6px;
}

.general {
	width: 770px;
	position: relative;
	height: auto;
	
}
.arriba {
	width: 770px;
	position: relative;
	height: 540px;
	
}