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- This WPT test may be referenced by the following Test IDs:
- /css/compositing/isolation/isolation-establishes-stacking-context.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Compositing and Blending: The isolation property</title>
<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com">
<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
<meta name="assert" content="For CSS, setting `isolation` to `isolate` will turn the element into a stacking context.">
<style>
#parent {
width: 100px;
height: 100px;
isolation: isolate;
background: red;
}
#child {
width: 100px;
height: 100px;
position: relative;
z-index: -1;
background: green;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="parent">
<div id="child"></div>
</div>