text-wrap-balance-line-clamp-001-ref.html

<!DOCTYPE html>
<style>
.container {
  font-family: monospace;
  font-size: 20px;
  width: 20ch;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}
</style>
<div class="container">
  123 567 901 345 789
  123 567 901 345 789
  123
</div>

chromium/third_party/blink/web_tests/external/wpt/css/css-text/white-space/reference/text-wrap-balance-line-clamp-001-ref.html