chromium/third_party/blink/web_tests/external/wpt/css/css-overflow/line-clamp/reference/line-clamp-010-ref.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Reference</title>
<style>
.clamp {
  font: 16px / 32px serif;
  white-space: pre;
  height: 4lh;
  padding: 0 4px;
  background-color: yellow;
}
</style>
<div class="clamp">Line 1
Line 2…</div>