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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-will-change/will-change-stacking-context-opacity-2.html - WPT Dashboard Interop Dashboard
<!doctype html>
<meta charset="utf-8">
<title>CSS Test: will-change: opacity should create a stacking context for inlines.</title>
<link rel="author" title="Philip Rogers" href="mailto:pdr@chromium.org">
<link rel="match" href="green-square-100-by-100-ref.html">
<style>
html, body { margin: 0; }
.indicator {
position: absolute;
width: 100px;
height: 100px;
background: green;
z-index: 1;
}
.will-change-opacity {
will-change: opacity;
width: 100px;
height: 100px;
}
.top {
position: absolute;
width: 100px;
height: 100px;
background: red;
z-index: 3;
}
</style>
<div class="indicator"></div>
<span class="will-change-opacity">
<!-- Because will-change: opacity creates a stacking context, this child
remains on bottom even though it has a higher z-index than the indicator
box. -->
<div class="top"></div>
</span>