css/css-text/bidi/bidi-tab-001.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text Test: Interaction between tabs and bidi</title>
<link rel="author" title="Koji Ishii" href="mailto:kojii@chromium.org">
<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#white-space-phase-2">
<link rel="help" href="http://unicode.org/reports/tr9/#L1">
<link rel="match" href="reference/bidi-tab-001-ref.html">
<meta name=assert content="with unicode-bidi: plaintext, lines from bidi paragraphs with strong directionality use that direction">
<style>
div {
  font-family: monospace;
  font-size: 20px;
  line-height: 1;
  white-space: pre;
  width: 10ch;
  background: blue;
  color: blue;
}
span {
  background: yellow;
}
</style>
<p>The test passes if the two boxes are identical.

<div dir=ltr><span dir=ltr>&#9;0</span></div>
<div dir=rtl><span dir=rtl>&#9;0</span></div>
<div dir=ltr><span dir=rtl>&#9;0</span></div>
<div dir=rtl><span dir=ltr>&#9;0</span></div>

<br>

<div dir=ltr><span dir=ltr>&#9;0</span></div>
<div dir=rtl><span dir=rtl>&#9;0</span></div>
<div dir=ltr><span dir=ltrl>&#9;0</span></div>
<div dir=rtl><span dir=rtl>&#9;0</span></div>