align-content-change-keeping-geometry.html

<!DOCTYPE HTML>
<script src="../resources/text-based-repaint.js"></script>
<script>
function repaintTest() {
  document.getElementById('container').style.alignContent = 'center';
}
onload = runRepaintAndPixelTest;
</script>
<style>
#container {
  display: flex;
  align-items: flex-start;
  width: 200px;
  height: 300px;
  background-color: red;
}
.item {
  background-color: green;
  border: solid thin blue;
  width: 100px;
  height: 300px;
}
</style>
<p style="height: 20px">There should be no invalidations because align-content style change causes no visual change.</p>
<div id="container">
  <div class="item"></div>
  <div class="item"></div>
</div>

chromium/third_party/blink/web_tests/paint/invalidation/flexbox/align-content-change-keeping-geometry.html