line-clamp-auto-031.tentative.html | Explore in Territory

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Overflow: `line-clamp: auto` margin collapsing accounts for self-collapsing boxes</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-auto-031-ref.html">
<meta name="assert" content="With `line-clamp: auto`, if a clamp point might fall inside a box, its margins are accounted for correctly. This is the case even for self-collapsing boxes before the clamp point.">
<style>
.clamp {
  line-clamp: auto;
  max-height: calc(4lh + 2 * 5px);
  font: 16px / 32px serif;
  background-color: orange;
}
.inner {
  white-space: pre;
  margin: 5px;
  background-color: yellow;
}
.collapse-through {
  margin: 10px;
}
.abspos {
  position: absolute;
  right: 0;
  height: 100px;
  width: 100px;
  background-color: skyblue;
}
</style>

<!--
  The bottom margin of the first `.inner` ends at the clamp boundary, and the
  bottom margin of `.collapse-through` ends after it. The clamp point therefore
  is before `.collapse-through`, and so `.abpos` won't be visible.
-->

<div class="clamp">
<div class="inner">Line 1
Line 2
Line 3
Line 4</div>
<div class="collapse-through"></div>
<div class="abspos"></div>
<div class="inner">Line 5
Line 6
Line 7
Line 8</div>
</div>

chromium/third_party/blink/web_tests/external/wpt/css/css-overflow/line-clamp/line-clamp-auto-031.tentative.html