HTML

<div class="hovergallery51"><img src="http://pitanie-plus.com/wp-content/uploads/2013/09/156-452x300.jpg" alt="" width="200" height="200" /><img src="http://img0.liveinternet.ru/images/attach/c/6/89/264/89264490_large_89261746_large_0_4f5d0_87559130_L.jpg" alt="" width="200" height="200" /></div>

CSS

.hovergallery51 img{ 
border: 2px solid #fff; 
border-radius: 3em /1em ;
box-shadow: 2px 2px 6px #000000;
-webkit-transform:scale(0.9); 
-moz-transform:scale(0.9); 
-o-transform:scale(0.9);
-webkit-transition: width 3s, height 3s, background-color 3s, 
-webkit-transform 3s;
transition: width 3s, height 3s, background-color 3s, transform 3s;
opacity: 0.8;
margin:5px 5px 5px 5px; 
}
.hovergallery51 img:hover{
box-shadow: 0 5px 5px -5px rgba(0, 0, 0, 0.9);
border: 1px dotted #000;
border-radius:30%;
opacity: 1.0;
-webkit-transform: scale(1.4) rotate(-10deg); 
-moz-transform: scale(1.4) rotate(-10deg);
-o-transform: scale(1.4) rotate(-10deg);
transform: scale(1.4) rotate(-10deg);
}