<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text Test reference</title>
<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
<link rel="author" title="Mozilla" href="https://www.mozilla.org/">
<meta name="flags" content="ahem">
<style>
#wrapper {
  width: 0px;
  font: 16px / 1 Ahem;
  color: green;
}
#test {
  float: left;
}
#reference {
  position: absolute;
  width: 16px;
  height: 128px;
  background: red;
  z-index: -1;
}
</style>

<p>Test passes if there is a vertical green bar below.
<div id="wrapper">
  <div id="reference"></div>
  <div id="test">X<br>X<br>X<br>X<br>X<br>X<br>X<br>X</div>
</div>