.cloud_img {
  margin-top: -140px;
}

.card {
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
  margin: 10px;
  padding: 40px 14px;
  border-radius: 10px;
  width: 30%;
}

.curve {
  background: #def0fd;
  padding-top: 160px;
  margin-bottom: 100px;
  margin-top: -100px;
}

@media only screen and (max-width: 900px) {
  .cloud_img {
    margin-top: -80px;
  }
  .card {
    width: 44%;
    margin: 20px auto;
  }
  .curve {
    margin-top: -48px;
  }
}

@media only screen and (max-width: 500px) {
  .cloud_img {
    margin-top: -40px;
  }
  .card {
    width: 100%;
    margin: 20px auto;
  }
  .curve {
    margin-top: -36px;
  }
}
