#dlimg {
  width: 55%;
  text-align: center;
  margin-top: -70%;
  margin-left: 51%;
  z-index: 10;
}

#iosdlimg {
  width: 55%;
  text-align: center;
  margin-top: -74%;
  margin-left: 51%;
  z-index: 10;
}

#iosdlimg2 {
  width: 30%;
  text-align: center;
  margin-top: -47%;
  margin-left: 61%;
  z-index: 11;
}