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<!DOCTYPE html>
<title>CSS Anchor Positioning: try-tactic, base values</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#typedef-position-try-options-try-tactic">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#cb {
position: absolute;
width: 400px;
height: 200px;
border: 1px solid black;
}
#target {
position: absolute;
/* Does not fit initially */
width: 150px;
height: 300px;
border: 3px solid skyblue;
}
</style>
<div id=cb>
<div id=target></div>
</div>
<script>
test(() => {
let cs = getComputedStyle(target);
assert_equals(cs.width, '150px');
assert_equals(cs.height, '300px');
target.style.positionTryOptions = 'flip-start';
assert_equals(cs.width, '300px');
assert_equals(cs.height, '150px');
}, 'flip-start affects base values');
</script>
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