<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>CSS Reftest Reference</title>
  <link rel="author" title="Morgan Rae Reschenberg" href="mailto:mreschenberg@berkeley.edu">
  <style>
  .basic {
    border: 1em solid green;
    column-count: 3;
  }
  .height-ref {
    height: 20px;
    background: lightblue;
  }
  .width-ref {
    width: 20px;
  }
  .floatLBasic-ref {
    float: left;
  }
  .floatLWidth-ref {
    float: left;
    width: 20px;
  }
  </style>
</head>
<body>
  <div class="basic"></div>
  <br>

  <div class="basic height-ref"></div>
  <br>

  <div class="basic height-ref"></div>
  <br>

  <div class="basic width-ref"></div>
  <br>

  <div class="basic width-ref"></div>
  <br>

  <div class="basic floatLBasic-ref"></div>
  <br>

  <div class="basic floatLWidth-ref"></div>
</body>
</html>
