.container-fluid{
  background-image: url("../../images/back.svg");
  height: 50vh;
  background-position: center;
  background-size: cover;
  background-attachment: fixed;
  text-align: center;
  border: 1px solid grey;
}


@media (max-width: 768px) {
.container-fluid{
  background-image: url("../../images/back2.svg");
  height: 25vh;
  background-position: center;
  background-size: cover;
  background-attachment: fixed;
  text-align: center;
  border: 1px solid grey;
}
  }
}