File: webkit-line-clamp-021.html

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<!DOCTYPE html>
<html class="reftest-wait">
<meta charset="utf-8">
<title>CSS Overflow: Dynamically changing contents of a -webkit-line-clamp affected element</title>
<link rel="author" title="Cameron McCormack" href="mailto:cam@mcc.id.au">
<link rel="help" href="https://drafts.csswg.org/css-overflow-3/#webkit-line-clamp">
<link rel="match" href="reference/webkit-line-clamp-021-ref.html">
<meta name="assert" content="Dynamically changing contents of a -webkit-line-clamp element so that it exceeds the specified number of lines should start clamping.">
<style>
.clamp {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  font: 16px / 32px serif;
  white-space: pre;
  padding: 0 4px;
  background-color: yellow;
  overflow: hidden; /* can be removed once implementations update their old -webkit-line-clamp implementations */
}
</style>
<div class="clamp">Line 1
Line 2</div>
<p>Following content.</p>
<script>
window.onload = function() {
  document.querySelector(".clamp").textContent = `Line 1
Line 2
Line 3
Line 4
Line 5`;
  document.documentElement.className = "";
};
</script>