body{
	background-image: url("https://cdn.pixabay.com/photo/2020/04/03/06/57/farm-background-4997629_1280.jpg");
	background-position: center;
	background-repeat: no-repeat;
}

#grafica{
	position: relative; 
	height:40vh; 
	width:50vw;
}

#grafica{
	background-color: rgba(0, 0, 0, 0.7);
}
.card-text{
    font-size: 1.3vw;
}