.block-qualiopi {
  position: absolute;
  width: 250px;
  overflow: hidden;
  border-radius: 25px/30px;
  z-index: 4;
}
@media screen and (max-width: 768px) {
  .block-qualiopi {
    width: 150px;
    border-radius: 12px/15px;
  }
}
.block-qualiopi.top-left {
  top: 20px;
  left: 20px;
}
.block-qualiopi.top-right {
  top: 20px;
  right: 20px;
}
.block-qualiopi.bottom-left {
  bottom: 20px;
  left: 20px;
}
.block-qualiopi.bottom-right {
  bottom: 20px;
  right: 20px;
}
.block-qualiopi img {
  width: 100%;
  height: 100%;
}