testing/web-platform/tests/css/css-text/white-space/break-spaces-with-ideographic-space-010.html


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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text Test: white-space: break-spaces</title>
<link rel="author" title="Javier Fernandez" href="mailto:jfernandez@igalia.com" />
<link rel="help" title="3. White Space and Wrapping: the white-space property" href="https://drafts.csswg.org/css-text-3/#white-space-property">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#valdef-white-space-break-spaces">
<meta name="flags" content="ahem">
<link rel="match" href="reference/white-space-break-spaces-005-ref.html">
<meta name="assert" content="break-spaces only allows breaking after an ideographic space, hence, it may overflow.">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
div {
  font: 25px/1 Ahem;
}
.fail {
  position: absolute;
  color: red;
  z-index: -1;
}
span { color: green; }
.test {
  color: green;
  width: 4ch;

  white-space: break-spaces;
}
</style>

<p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
<div class="fail">XXXX<br><span>X</span>XX<span>X<br>XXXX<br>XXXX</span></div>
<div class="test">XXXX&#x3000;&#x3000;XX</div>