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<!DOCTYPE html>
<title>Top-layer element can anchor to non-top-layer fixed positioned element</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-1/#target-anchor-element">
<link rel="author" href="mailto:xiaochengh@chromium.org">
<link rel="match" href="anchor-position-top-layer-ref.html">
<style>
#anchor {
position: fixed;
top: 200px;
left: 200px;
width: 100px;
height: 100px;
background: orange;
anchor-name: --a;
}
#target {
top: anchor(--a top);
left: anchor(--a right);
width: 100px;
height: 100px;
background: lime;
anchor-scroll: --a;
outline: none;
}
body {
margin: 0;
height: 300vh;
}
dialog {
margin: 0;
border: 0;
padding: 0;
inset: auto;
}
dialog::backdrop {
background: transparent;
}
</style>
<div id="anchor"></div>
<dialog id="target"></dialog>
<script>
target.showModal();
document.scrollingElement.scrollTop = 100;
</script>
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