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<!DOCTYPE html>
<title>Tests scroll adjustments of element anchored to another anchored element with fallback</title>
<link rel="author" href="mailto:wangxianzhu@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-anchor-1/">
<link rel="match" href="reference/anchor-scroll-chained-fallback.tentative-ref.html">
<style>
body {
margin: 0;
}
div {
width: 100px;
height: 100px;
}
#scroller {
overflow: scroll;
width: 300px;
height: 300px;
}
#anchor {
anchor-name: --a1;
background: orange;
margin: 250px 0;
}
#anchored1 {
position: absolute;
anchor-default: --a1;
background: green;
position-try-options: --fallback;
anchor-name: --a2;
left: anchor(--a1 left);
bottom: anchor(--a1 top);
}
#anchored2 {
position: absolute;
anchor-default: --a2;
left: anchor(--a2 left);
top: anchor(--a2 bottom);
background: lime;
}
@position-try --fallback {
left: anchor(--a1 right);
top: anchor(--a1 top);
bottom: auto;
}
</style>
<div id="scroller">
<div id="anchor"></div>
</div>
<div id="anchored1"></div>
<div id="anchored2"></div>
<script>
scroller.scrollTop = 200;
</script>
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