#popupmain{
  position:fixed;
  width: 100%;
  height: 100%;
  background:rgba(255, 255,255, 0.6);
  z-index: 1001;
}

#popup{
    width: 70%;
    height: 70%;
    background-image: url(https://www.itca.org.in/assets/img/Modiji.jpeg);
background-size: contain;
background-repeat: no-repeat;
    position: absolute;
    top: 50%;
    left: 60%;
    transform: translate(-50%, -50%);

}