File: regions-stacking-context-004-ref.html

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<!DOCTYPE html>
<html>
	<head>
		<title>CSS Reftest Reference</title>
		<link rel="author" title="Mihai Balan" href="mailto:mibalan@adobe.com">
		<style>
		.left,
		.center,
		.right {
			position: relative;
			width: 100px;
			height: 100px;
		}
		.left {
			top: 0;
			left: 0;
			background-color: lightgreen;
		}
		.center {
			top: -75px;
			left: 25px;
			background-color: lightblue;
		}
		.right {
			top: -150px;
			left: 50px;
			background-color: yellow;
		}

		#region {
			width: 150px;
			height: 150px;
			/* the properties below are needed to force the region in creating a stacking context */
			position: relative;
			z-index: -1;
		}

		#dummy {
			background-color: purple;
			width: 100px;
			height: 100px;
			margin-top: -75px;
			margin-left: 75px;
		}
		</style>
	</head>
	<body>
		<ol>
			<li>You should see no red.</li>
			<li>You should see four colored overlapping squares, from back to front: a purple square, a green square, a blue square and a yellow square.</li>
		</ol>

		<div id="region">
			<div class="left"></div>
			<div class="center"></div>
			<div class="right"></div>
		</div>
		<div id="dummy"></div>
	</body>
</html>