.imgzoom_pack{
width:100%;
height:100%;
position:fixed;
left:0;
top:0;
background:rgba(0,0,0,.8);
display:none;
z-index: 99999999999995;
}
.imgzoom_pack .imgzoom_x{
color:#fff;
height:30px;
width:30px;
line-height:30px;
background:#000;
text-align:center;
position:absolute;
right:5px;
top:5px;
z-index: 99999999999996;
cursor:pointer;
}
.imgzoom_pack .imgzoom_img{
width:100%;
height:100%;
position:absolute;
left:0;
top:0;
overflow:hidden;
}
.imgzoom_pack .imgzoom_img img{
width:100%;
position:absolute;
top:50%;
}