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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-anchor-position/anchor-center-visibility-change.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html class=reftest-wait>
<title>Tests 'anchor-center' value when target visibility changes</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#valdef-justify-self-anchor-center">
<link rel="author" href="mailto:plampe@igalia.com">
<link rel="match" href="anchor-center-visibility-change-ref.html">
<script src="/common/reftest-wait.js"></script>
<script src="/common/rendering-utils.js"></script>
<style>
.container {
width: 100px;
height: 100px;
border: solid 3px;
position: relative;
margin: 50px;
}
.anchor {
anchor-name: --anchor;
position: relative;
width: 50px;
height: 50px;
left: 40px;
top: 5px;
background: lime;
}
.target {
position-anchor: --anchor;
position: fixed;
background: cyan;
justify-self: anchor-center;
display: none;
}
</style>
<div class="container">
<div class="anchor"></div>
<div id="target" class="target">
<div style="width:30px;height:20px;"></div>
</div>
</div>
<script>
// #target should be invisible initially.
waitForAtLeastOneFrame().then(() => {
// Change #target to be visible.
document.getElementById('target').style.display = 'flow';
waitForAtLeastOneFrame().then(() => {
// #target should be visible and anchor-centered now.
takeScreenshot();
});
});
</script>