.image {
margin:30px;
float:left;
cursor:pointer;
max-height:100px;
}

.popup {
  z-index:99999;
position: absolute;
    display:block;
height:100%;
width:100%;
top:0;
left:0;
display:none;
text-align:center;
}
 
.popup_bg {
  z-index:999999;
background:rgba(0,0,0,0.4);
position:fixed;
  display:block;
top:0px;
left:0px;
z-index:4;
height:100%;
width:100%;
}
 
.popup_img {
  z-index:9999999;
position: fixed;
    display: block;
z-index:8;
  max-height: 94%;
    max-width: 94%;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
}