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<!DOCTYPE html>
<html>
<head>
<title>CSS Test: an element with mix-blend-mode other than normal creates a stacking context</title>
<link rel="author" title="Mihai Tica" href="mailto:mitica@adobe.com">
<link rel="reviewer" title="Mihai Balan" href="mailto:mibalan@adobe.com">
<link rel="help" href="https://drafts.fxtf.org/compositing-1/#mix-blend-mode">
<meta name="flags" content="dom">
<meta name="assert" content="Test checks that applying a blendmode other than normal
to the element must establish a new stacking context.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id="blender"></div>
<script type="text/javascript">
var blendModes = ["multiply", "screen", "overlay", "darken", "lighten", "color-dodge", "color-burn",
"hard-light", "soft-light", "difference", "exclusion", "hue", "saturation", "color", "luminosity"];
test(function() {
var blender = document.getElementById("blender");
for (var i = 0; i < blendModes.length; ++i) {
blender.style.mixBlendMode = blendModes[i];
var blenderStyle = window.getComputedStyle(blender);
assert_not_equals(blenderStyle.zIndex, "auto");
}
});
</script>
</body>
</html>
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