chromium/third_party/blink/web_tests/external/wpt/css/css-text/white-space/break-spaces-tab-001.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text level 3 Test: wrapping opportunity after break-spaces tabs</title>
<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#white-space-phase-1">
<link rel="match" href="reference/pre-wrap-001-ref.html">
<meta name="assert" content="There is a wrapping opportunity at the end of a sequence of tabs with white-space:break-spaces">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
div {
  font: 20px/1 Ahem;
}
#test {
  white-space: break-spaces;
  color: green;
  width: 16ch;
}
#ref {
  color: red;
  position: absolute;
  z-index:-1;
}
</style>

<p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
<div id=ref>XX<br>XX</div>
<div id=test>XX&#x09;&#x09;XX</div>