<html>
<head>
</head>
<body>
    <div style="-moz-transform: rotatex(90deg); -moz-transform-style: preserve-3d; opacity: 0.9999;">
        <div style="-moz-transform: rotatex(90deg); width: 100px; height: 100px; background-color: #00FF00"></div>
  </div>
</body>
</html>