position-sticky-change-top-ref.html

<!DOCTYPE html>
<title>Reference for sticky elements should invalidate when top/left/bottom/right changes</title>

<style>
.box {
  /* Triggers promotion without creating stacking context. */
  backface-visibility: hidden;
  background: green;
  position: sticky;
  top: 200px;
  width: 100px;
  height: 100px;
}

.spacer {
  height: 200vh;
}
</style>

<div class="box"></div>
<div class="spacer"></div>

chromium/third_party/blink/web_tests/external/wpt/css/css-position/sticky/position-sticky-change-top-ref.html