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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/CSS2/zindex/z-index-020.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html class="reftest-wait">
<title>CSS Test: z-index - dynamic changes</title>
<link rel="author" title="Oriol Brufau" href="obrufau@igalia.com">
<link rel="match" href="../../reference/ref-filled-green-200px-square.html">
<meta name="assert" content="Checks that z-index can be changed dynamically.">
<style>
div {
width: 200px;
height: 200px;
position: absolute;
}
#red {
background: red;
}
#target {
background: green;
z-index: -1;
}
#target.front {
z-index: 1;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="red"></div>
<div id="target"></div>
<script src="/common/reftest-wait.js"></script>
<script src="/common/rendering-utils.js"></script>
<script>
waitForAtLeastOneFrame().then(() => {
document.getElementById("target").className = "front";
takeScreenshot();
});
</script>
</html>