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<?xml version="1.0" encoding="UTF-8"?>
<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<!-- Testcase with flex items containing overlapping content, with
"z-index" set on some of them, which should make them create
stacking contexts. -->
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>CSS Test: Testing that 'z-index' property makes flex items form stacking contexts</title>
<link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
<link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#painting"/>
<link rel="match" href="flexbox-items-as-stacking-contexts-001-ref.xhtml"/>
<style>
.flexbox {
width: 90px;
height: 10px;
border: 2px solid gray;
display: flex;
margin-bottom: 10px;
}
.a {
width: 10px;
height: 10px;
background: lightblue;
min-width: 0;
}
.b {
width: 10px;
height: 10px;
background: pink;
min-width: 0;
margin-right: 10px;
}
.aKid {
margin-left: 3px;
margin-top: 3px;
width: 10px;
height: 10px;
background: steelblue;
border: 1px solid blue;
}
.bKid {
margin-left: 3px;
margin-top: 6px;
width: 10px;
height: 10px;
background: violet;
border: 1px solid purple;
}
.z0 { z-index: 0; }
.z1 { z-index: 1; }
.zn1 { z-index: -1; }
</style>
</head>
<body>
<!-- No "z-index" -->
<div class="flexbox">
<div class="a"><div class="aKid"/></div>
<div class="b"><div class="bKid"/></div>
</div>
<!-- Various "z-index" just on the first item -->
<div class="flexbox">
<div class="a zn1"><div class="aKid"/></div>
<div class="b"><div class="bKid"/></div>
<div class="a z0"><div class="aKid"/></div>
<div class="b"><div class="bKid"/></div>
<div class="a z1"><div class="aKid"/></div>
<div class="b"><div class="bKid"/></div>
</div>
<!-- Various "z-index" just on the second item -->
<div class="flexbox">
<div class="a"><div class="aKid"/></div>
<div class="b zn1"><div class="bKid"/></div>
<div class="a"><div class="aKid"/></div>
<div class="b z0"><div class="bKid"/></div>
<div class="a"><div class="aKid"/></div>
<div class="b z1"><div class="bKid"/></div>
</div>
<!-- Various "z-index" on the first item, w/ "z-index:0" on second item -->
<div class="flexbox">
<div class="a zn1"><div class="aKid"/></div>
<div class="b z0"><div class="bKid"/></div>
<div class="a z0"><div class="aKid"/></div>
<div class="b z0"><div class="bKid"/></div>
<div class="a z1"><div class="aKid"/></div>
<div class="b z0"><div class="bKid"/></div>
</div>
<!-- Various "z-index" on the second item, w/ "z-index:0" on first item -->
<div class="flexbox">
<div class="a z0"><div class="aKid"/></div>
<div class="b zn1"><div class="bKid"/></div>
<div class="a z0"><div class="aKid"/></div>
<div class="b z0"><div class="bKid"/></div>
<div class="a z0"><div class="aKid"/></div>
<div class="b z1"><div class="bKid"/></div>
</div>
</body>
</html>
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