css/css-text/line-break/line-break-anywhere-overrides-uax-behavior-016.html

<!DOCTYPE html>
<html lang=en>
<meta charset="utf-8">
<title>CSS Text Test: line-break: anywhere overrides behavior defined for the WJ, ZW, GL, and ZWJ classes</title>
<link rel="author" title="Javier Fernandez Garcia-Boente" href="mailto:jfernandez@igalia.com">
<link rel="help" title="5.1. Line Breaking Details" href="https://drafts.csswg.org/css-text-3/#line-break-details">
<link rel="help" title="5.3. Line Breaking Strictness: the line-break property" href="https://drafts.csswg.org/css-text-3/#line-break-property">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#valdef-line-break-anywhere">
<link rel="match" href="reference/line-break-anywhere-004-ref.html">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<meta name="flags" content="Ahem">
<meta name="assert" content="Except where explicitly defined by 'line-break: anywhere' line breaking behavior defined for the ZWJ classes in [UAX14] must be honored. ">
<style>
div {
  position: relative;
  font: 25px / 1 Ahem;
}
.red {
  position: absolute;
  background: green;
  color: red;
  height: 100px;
  z-index: -1;
}
.test {
  color: green;
  width: 4ch;
  line-break: anywhere;
}
</style>
<body>
  <p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
  <div class="red">XX X<br>X</div>
  <div class="test">XX &#x200D;XX</div>
</body>