html, body { height: 100%; }
body {
margin: 0 auto;
background: radial-gradient(#666, #222);
overflow: hidden;
}
.moving-zone {
position: absolute;
top:50%; left:50%;
width:300px; height:120px;
margin: -60px 0 0 -230px;
perspective: 800px;
}
.popup {
position: absolute;
width:500px;
padding: 10px;
box-sizing: border-box;
border-radius: 20px ;
cursor: pointer;
box-shadow:2px 2px 13px #ccc;
transform-style: preserve-3d;
background: -webkit-linear-gradient(top left, white 50%, #4788e8 50%);
background: -moz-linear-gradient(top left, white 50%, #4788e8 50%);
background: -ms-linear-gradient(top left, white 50%, #4788e8 50%);
background: -o-linear-gradient(top left, white 50%, #4788e8 50%);
background: linear-gradient(top left, white 50%, #4788e8 50%);
}
.popup:before {
content: '';
position: absolute;
left:5%; top:5%;
width:90%; height:90%;
border-radius: inherit;
background: rgba(0,0,0,.1);
box-shadow: 0 0 40px 20px rgba(0,0,0,.1);
