.box_center {
  text-align: center;
}

.box_center_images {
  width: auto;
}

@media screen and (min-width: 768px) and (max-width: 1100px) {
  .box_center_images {
    width: 100%;
  }
}
@media screen and (max-width: 767px) {
  .box_center_images {
    width: 100%;
  }
}