.cad {
  position: absolute;
  right: 80px;
  top: 16px;
  width: 200px;
  height: 200px;
  background: rgba(0, 0, 0, .3);
  border-radius: 5px;
  display: none;
}

.cad > div {
  width: 100%;
  height: 100%;
}

@media only screen and (max-width: 600px) { 
.cad {
  position: absolute;
  left: 16px;
  top: 65px;
  width: 100px;
  height: 100px;
  background: rgba(0, 0, 0, .3);
  border-radius: 5px;
}
}