word-space-transform-015-manual.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text level 4 Test: word-space-transform copy-pasting</title>
<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
<link rel="help" href="https://drafts.csswg.org/css-text-4/#word-space-transform">
<meta name="assert" content="word-space-transform does not affect copy and paste">
<style>
div, textarea {
  font-size: 2em;
  margin: 1em;
  font-family: monospace;
  resize: none;
  overflow: hidden;
  height: 2em;
  width: 20ch;
  padding: 0px;
}
#test {
  border: solid blue;
  word-space-transform: space;
}
#ref {
  border: solid orange;
}
textarea {
  border: solid pink;
}

</style>

<p>Copy the text from the blue box, and paste it into the pink one.
The test passes if the pink and orange boxes are identical.

<div id=test>no<wbr>space&#x200B;here</div>
<textarea spellcheck="false"></textarea>
<div id=ref>nospacehere</div>

chromium/third_party/blink/web_tests/external/wpt/css/css-text/word-space-transform/word-space-transform-015-manual.html