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<!DOCTYPE html>
<html>
<head>
<title>CSS Transforms Test: transform property with backface visibility = hidden</title>
<link rel="author" title="Jian Zhang" href="mailto:jian.andy.zhang@gmail.com">
<link rel="help" href="http://www.w3.org/TR/css-transforms-1/#transform-property">
<link rel="help" href="http://www.w3.org/TR/css-transforms-2/#propdef-backface-visibility">
<link rel="match" href="reference/backface-visibility-hidden-ref.html">
<meta name="fuzzy" content="maxDifference=0-100;totalPixels=0-300">
<meta name="assert" content="When the value of backface visibility property is 'hidden', the back side of a transformed element is invisible when facing the viewer.">
<style type="text/css">
.greenSquare {
position: absolute;
top: 50px;
left: 50px;
width: 100px;
height: 100px;
background: green;
z-index: 2;
}
.redSquare {
position: absolute;
top: 50px;
left: 50px;
width: 100px;
height: 100px;
background: red;
z-index: 1;
transform: rotateY(180deg);
}
.face {
backface-visibility: hidden;
}
.card {
transform-style: preserve-3d;
}
.container {
width: 200px;
height: 200px;
perspective: 1000px;
transform: rotateY(45deg);
}
</style>
</head>
<body>
<p>The test passes if there is a green retangle and no red.</p>
<div class="container">
<div class="card">
<div class="redSquare face"></div>
<div class="greenSquare face"></div>
</div>
</div>
</body>
</html>
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