.zoom {      
-webkit-transition: transform 0.35s ease-in-out;    
   -moz-transition: transform 0.35s ease-in-out; 
     -ms-transform: transform 0.35s ease-in-out;    
      -o-transform: transform 0.35s ease-in-out; 
        transition: transform 0.35s ease-in-out;     
cursor: -webkit-zoom-in;      
cursor: -moz-zoom-in;      
cursor: zoom-in;  
}     

.zoom:hover,  
.zoom:active,   
.zoom:focus {
/**adjust scale to desired size, 
add browser prefixes**/
-webkit-transform: scale(1.5);  
   -moz-transform: scale(1.5);  
    -ms-transform: scale(1.5);    
     -o-transform: scale(1.5);  
        transform: scale(1.5);  
  
position: relative; 
transform-origin: top left;
z-index: 999;  
}