<!DOCTYPE html>
<html>
<head>
  <title>
    Reference Case
  </title>
  <style>
  .container {
    display: flex;
    justify-content: space-between;
    width: 300px;
    border: 1px solid black;
  }
  .wspWrapper {
    white-space: pre;
  }
  </style>
</head>
<body>
<!-- We use an explicit div here, to match the anonymous div that the testcase
     is expected to generate around the whitespace. -->
<div class="container">
  <div>a</div>
  <div class="wspWrapper">   </div>
  <div>b</div>
  <div>c</div>
</div>
</body>
</html>