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<!DOCTYPE html>
<html class=reftest-wait>
<meta charset="utf-8">
<meta name="assert" content="Position-visibility: anchors-visible should show an element after an anchor changes from visibility: hidden to visibility: visible." />
<title>CSS Anchor Positioning Test: position-visibility: anchors-visible</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#position-visibility">
<link rel="match" href="position-visibility-anchors-visible-change-css-visibility-ref.html">
<script src="/common/reftest-wait.js"></script>
<script src="/common/rendering-utils.js"></script>
<style>
#container {
visibility: hidden;
}
#anchor {
anchor-name: --a1;
width: 100px;
height: 100px;
background: orange;
}
#target {
position-anchor: --a1;
position-visibility: anchors-visible;
inset-area: bottom;
width: 100px;
height: 100px;
background: green;
position: absolute;
top: 0;
left: 0;
}
</style>
<div id="container">
<div id="anchor">anchor</div>
</div>
<div id="target">target</div>
<script>
// #target should be initially hidden because it is anchored to #anchor,
// which is hidden with "visibility: hidden".
waitForAtLeastOneFrame().then(() => {
// Change #container to "visibility: visible". #target should become
// visible again, because #anchor is no longer hidden.
container.style.visibility = 'visible';
takeScreenshot();
});
</script>
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