<html>
<head>
<style type="text/css">
#parent {
-moz-transform-style: preserve-3d;
-moz-transform: rotateX(180deg);
width: 100px;
height: 100px;
background-color: #00FF00;
}
#child {
width: 100px;
height: 100px;
background-color: red;
-moz-transform: translatez(10px);
}
</style>
</head>
<body>
<div id="parent">
<div id="child"></div>
</div>
</body>
</html>