chromium/third_party/blink/web_tests/external/wpt/css/css-text/letter-spacing/reference/letter-spacing-202-ref.html

<!DOCTYPE html>
<html  lang="en" >
<meta charset="utf-8">
<title>CSS Test Reference</title>
<link rel='author' title='Elika J. Etemad' href='http://fantasai.inkedblade.net/contact'>
<style type='text/css'>
  @import "/fonts/ahem.css";
  .test { float: left; color: green; background: red; font: 20px/1 Ahem; }
  .spacing { position: absolute; width: 1em; height: 2em; margin: 0 1em; background: green; }
</style>

<div id='instructions'>Test passes if there is a green rectangle below and no red.</div>

<div class="test"><div class="spacing"></div>xx<br>xx</div></div>