@media screen and (min-width: 768px) {
  .img-set_1_2 {
    position: absolute;
    top: 12%;
    right: 12%;
  }

  .img-set_2_1 {
    top: 62%;
    right: 11%;
  }
}

@media screen and (max-width: 767px) {
  .img-setter {
    min-height: 135px;
  }

  .img-set_1_1 {
    bottom: 5%;
    left: -10%;
    transform: scale(0.8);
  }

  .img-set_2_1 {
    top: 43%;
    right: -22%;
    transform: scale(0.8);
    left: -9%;
  }

  .img-set_3_1 {
    top: -4%;
    left: -10%;
    transform: scale(0.8);
    right: -14%;
  }

  .img-set_3_2 {
    bottom: 4%;
    right: -12%;
    transform: scale(0.8);
    left: -16%;
  }

  .img-set_4_2 {
    bottom: -3%;
    right: -16%;
    transform: scale(0.8);
    left: -15%;
  }
}