chromium/third_party/blink/web_tests/external/wpt/css/css-overflow/line-clamp/line-clamp-024.tentative.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Overflow: when clamping by lines, margins of hidden boxes are ignored</title>
<link rel="author" title="Andreu Botella" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#line-clamp">
<link rel="match" href="reference/line-clamp-022-ref.html">
<meta name="assert" content="When line-clamp is used with a number of lines, the margins of boxes after the clamp point should not affect the sizing of boxes.">
<style>
.clamp {
  line-clamp: 4;
  font: 16px / 32px serif;
  padding: 4px;
  background-color: yellow;
  border: 2px solid black;
}
.inner {
  background-color: purple;
  margin: 4px;
  /* Having a border means the margins of the .inner boxes won't collapse */
  border: 1px solid black;
}
.inner .inner {
  background-color: orange;
  white-space: pre;
}
.clamped-margin {
  /* These boxes are after the clamp point, so their margins should not affect
   * the size of their parent boxes. */
  background-color: red;
  margin: 20px;
  height: 20px;
}
</style>
<div class="clamp">
<div class="inner">
<div class="inner">Line 1
Line 2
Line 3
Line 4
Line 5
Line 6</div>
<div class="clamped-margin"></div>
</div>
<div class="clamped-margin"></div>
</div>
<p>Following content.</p>