#dlimg {
  width: 50%;
  text-align: center;
  margin-top: -60%;
  margin-left: 22%;
  z-index: 10;
}

#iosdlimg {
  width: 50%;
  text-align: center;
  margin-top: -63%;
  margin-left: 22%;
  z-index: 10;
}

#iosdlimg2 {
  width: 33%;
  text-align: center;
  margin-top: -45%;
  margin-left: 34.5%;
  z-index: 11;
}