css/css-text/line-breaking/line-breaking-atomic-001.html

<!doctype html>
<html>
<meta charset="utf-8">
<title>CSS Text — NBSP before atomic inline</title>
<meta name=assert content="There's a soft wrap opportunity between an atomic inline and a preceeding NBSP">
<link rel=help href="https://www.w3.org/TR/css-text-3/#line-break-details">
<link rel=match href="../../reference/ref-filled-green-100px-square.xht">
<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
div {
  font: 50px/1 Ahem;
  color: green;
  width: 100px;
  height: 100px;
  background: red;
}
span {
  display: inline-block;
}
</style>

<p>Test passes if there is a filled green square and <strong>no red</strong>.

<div>AB&nbsp;<span>CD</span></div>