<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-text-3">
<link rel="author" title="Koji Ishii" href="mailto:kojii@chromium.org">
<style>
#container {
  font-size: 100px;
  width: 33554432px;
}
atomic {
  display: inline-block;
  width: 1ch;
}
left {
  float: left;
  width: 33554432px;
  height: 10px;
}
</style>
<body>
  <div id="container">
    <atomic></atomic>
    0
    <left></left>
    <span dir="ltr"><atomic></atomic></span>
  </div>
</body>
