File: try-tactic-back-to-base.html

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<!DOCTYPE html>
<title>CSS Anchor Positioning: try-tactic, back to base values</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#typedef-position-try-fallbacks-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;
    width: 50px;
    height: 50px;
    /* Does not fit ... */
    left: 180px;
    top: 190px;
    /* ... and neither does this. */
    position-try-fallbacks: flip-block;
    background-color: coral;

  }
</style>
<div id=cb>
  <div id=target></div>
</div>
<script>
  test(() => {
    let cs = getComputedStyle(target);
    assert_equals(cs.left, '180px');
    assert_equals(cs.top, '190px');
  }, 'Should use base values when nothing fits');
</script>