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- This WPT test may be referenced by the following Test IDs:
            
- /css/css-ui/box-sizing-026.html - WPT Dashboard Interop Dashboard
 
 
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Basic User Interface Test: box-sizing:border-box floors to 0</title>
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<meta name="assert" content="Floor width and height computation to 0 as they cannot be negative.">
<style>
#red {
	position: absolute;
	width: 100px;
	height: 100px;
	background:red;
	z-index: -1;
}
#test {
	box-sizing: border-box;
	border: 50px green solid;
	width: 10px;
	height: 10px;
}
</style>
<body>
  <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
  <div id=red></div>
  <div id=test></div>
</body>