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servo/tests/wpt/css-tests/css-transforms-1_dev/html/transform-abspos-003.htm

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<!DOCTYPE html>
<html><head>
<title>CSS Test (Transforms): Containing Block for Fixed Positioning (right/bottom offsets)</title>
<link href="mailto:keith@keithschwarz.com" rel="author" title="Keith Schwarz">
<link href="mailto:ayg@aryeh.name" rel="author" title="Aryeh Gregor">
<link href="http://www.w3.org/TR/css-transforms-1/#transform-rendering" rel="help">
<meta content="&quot;In the HTML namespace, any value other than
'none' for the transform results in the creation of . . . a
containing block. The object acts as a containing block for fixed
positioned descendants.&quot; This means fixed-position elements need to be
rooted at a transformed ancestor, rather than the viewport. (This test
differs from the previous in that it uses right/bottom properties for
positioning instead of left/top.)" name="assert">
<link href="reference/transform-abspos-ref.htm" rel="match">
<style>
body > div {
width: 100px;
height: 200px;
transform: translate(50px, 50px);
background: gold;
}
body > div > div {
width: 200px;
height: 100px;
position: fixed;
right: -150px;
bottom: 0;
background: navy;
color: gold;
}
</style>
</head>
<body>
<div>
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
<div>
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</div>
</div>
</body></html>