wpt/css/css-overflow/line-clamp/line-clamp-037.html at master · web-platform-tests/wpt · GitHub

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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Overflow: a phantom line box after the last non-phantom line box in a container doesn't introduce a clamp point</title>
<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#line-clamp">
<link rel="help" href="https://drafts.csswg.org/css-inline-3/#invisible-line-boxes">
<link rel="match" href="reference/webkit-line-clamp-001-ref.html">
<meta name="assert" content="Phantom line boxes are defined to be treated as not existing for any layout or rendering purpose other than determining the positions of any descendant, so if a regular line box is followed by a phantom line box, there's not a clamp point between them.">
<style>
.clamp {
  line-clamp: 5;
  font: 16px / 32px serif;
  background-color: yellow;
}
</style>
<div class="clamp">
  Line 1 <br>
  Line 2 <br>
  Line 3 <br>
  Line 4 <br>
  Line 5 <br>
  <span></span> <!-- phantom line box -->
</div>