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<!DOCTYPE html>
<title>scroll anchoring accounts for scroll-padding</title>
<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">
<link rel="author" href="https://mozilla.org" title="Mozilla">
<link rel="help" href="https://drafts.csswg.org/css-scroll-anchoring/#anchor-node-selection">
<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#optimal-viewing-region">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#scroller {
overflow: auto;
height: 500px;
scroll-padding-top: 200px;
}
#changer {
height: 100px;
}
#content {
height: 1000px;
}
</style>
<div id="scroller">
<div id="changer"></div>
<div id="content"></div>
</div>
<script>
test(() => {
scroller.scrollTop = 50;
changer.style.height = "200px";
assert_equals(scroller.scrollTop, 150, "Shouldn't anchor to #changer, since it's covered by scroll-padding");
});
</script>
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