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Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /css/css-anchor-position/position-anchor-003.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>Tests that layout is updated on position-anchor value changes</title>
<link rel="author" href="mailto:xiaochengh@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#target {
position: fixed;
width: 100px;
height: 100px;
background: lime;
top: anchor(top);
left: anchor(right);
position-anchor: --a;
}
#target.after {
position-anchor: --b;
}
#anchor1, #anchor2 {
width: 100px;
height: 100px;
background: orange;
}
#anchor1 {
anchor-name: --a;
}
#anchor2 {
margin-left: 100px;
anchor-name: --b;
}
body {
margin: 0;
}
</style>
<div id="anchor1"></div>
<div id="anchor2"></div>
<div id="target"></div>
<script>
test(() => {
document.body.offsetLeft; // Force layout
target.classList.add('after');
// #target should be anchored to #anchor2 now
assert_equals(target.offsetLeft, 200);
assert_equals(target.offsetTop, 100);
}, 'Layout is updated on `position-anchor` changes');
</script>