.container{
width:600px;
height:800px;
margin:10px auto 10px auto;
border:10px solid #5c2823;
}

.case{
width:200px;
height:200px;
margin:0px;
overflow:hidden;
position:relative;
float:left;
}
.case img  {
border:none;
position:absolute;   
top:-150px;
left:-150px;
height:600px;
opacity: 0.5;
-moz-opacity: 0.5;
filter:progid:DXImageTransform.Microsoft.Alpha(opacity=50);
}

.case img.stop  {
height:200px;
margin:0px;
overflow:hidden;
/*position:relative;
float:left;*/
opacity:1.0;
top:0px;
left:0px;
}