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<html>
<head>
</head>
<body>
<div style="transform: rotatey(90deg); transform-style: preserve-3d; width:100px; opacity:0.5">
<div style="transform: rotatey(90deg); width: 100px; height: 100px; background-color: #00FF00"></div>
</div>
</body>
</html>