<!DOCTYPE html>
<meta charset="utf-8">
<title>Test reference</title>
<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
<style>
.wrap {
  font-size: 2em;
  border: solid black;
  margin: 5px;
  width: 30ch;
}
.wrap > div {
  width: 0;
}
#ref {
  border-color: blue;
}
</style>

<!--
This test should pass even in UAs that don't support word-boundary-detection:auto(th)
since allowing south-east-asian languages to wrap is the default behavior.
-->

<p>Test passes if the black box is id