body {
  background: url("https://son-ar.online/new/pict/selprg.png");
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: 100% 100%;
}

#mega {
  position: absolute;
  text-align: center;
  width: 100%;
  top: 50%;
}

#pic {
  width: 100%;
  text-align: center;
}

#imwide { 
  position: relative;
  object-fit: Yes;
  width: 251px;
  height: 111px;
}

#immob { 
  position: relative;
  object-fit: Yes;
  width: 251px;
  height: 111px;
}