.howitworks-background {
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)),
    url("../images/goal-2.jpg");
  background-size: cover;
  background-position: 50% 30%;
  height: 90vh;
}
.howitworks-challenge-background {
  background: linear-gradient(rgba(23, 30, 39, 0) 50%, #171e27),
    url("../images/juan-pablo-rodriguez-693578-unsplash.jpg");
  background-size: cover;
}