.zoom_img img{
margin:0px;
height:113px;
width:150px;
-moz-transition:-moz-transform 0.5s ease-in; 
-webkit-transition:-webkit-transform 0.5s ease-in; 
-o-transition:-o-transform 0.5s ease-in;
}
.zoom_img img:hover{
-moz-transform:scale(2); 
-webkit-transform:scale(2);
-o-transform:scale(2);
}