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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-backgrounds/background-size-031.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Backgrounds and Borders Test: background-size '20% 30%' with background-repeat 'no-repeat round'</title>
<link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <!-- 2012-11-17 -->
<link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" title="3.9. Sizing Images: the 'background-size' property">
<link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-repeat" title="3.4. Tiling Images: the 'background-repeat' property">
<link rel="match" href="reference/background-size-031-ref.xht">
<meta name="flags" content="image">
<meta name="assert" content="Check if 'background-size' is '20% 30%' and 'background-repeat' is 'no-repeat round', then the height of the corresponding background image is 50px so that it fits a whole number of times (3 in this test) in the background positioning area, and the width of the background image is rescaled to 20% (50px in this test) of the background area.">
<meta name="fuzzy" content="maxDifference=1; totalPixels=0-948">
<style>
#ref-overlapped-red {
background-color: red;
height: 150px;
width: 50px;
}
#test-overlapping-square {
background-image: url(support/100x100-blue-and-orange.png);
background-repeat: no-repeat round;
background-size: 20% 30%;
bottom: 150px;
height: 150px;
position: relative;
width: 250px;
}
/*
Background positioning area is 250px wide by 150px tall.
The width of the background image is 20% of 250px == 50px.
The height is rescaled to 30% of 150px == 45px.
Then, because background-repeat is set to no-repeat round, the
height is rescaled as following:
Newest height = 150px / (round [150px / 45px]);
Newest height = 150px / (round [3.33]);
Newest height = 150px / (3);
Newest height = 50px;
*/
</style>
</head>
<body>
<p>Test passes if there is 1 column of 3 blue-and-orange squares and if there is <strong>no partially</strong> displayed square and <strong>no red</strong>.</p>
<div id="ref-overlapped-red"></div>
<div id="test-overlapping-square"></div>
</body>
</html>