<!DOCTYPE html>

  <meta charset="UTF-8">

  <title>CSS Reftest reference</title>

  <style>
  div.outer
    {
      height: 20px;
      margin-bottom: 16px;
      width: 20px;
    }

  div.inside
    {
      background-color: blue;
      height: 12px;
      margin: 2px 4px 6px 8px;
      width: 8px;
    }

  div#first-subtest
    {
      border: green solid 1px;
      padding: 39px;
    }

  div#second-subtest
    {
      border-top: green solid 1px;
      border-right: green solid 5px;
      border-bottom: green solid 1px;
      border-left: green solid 5px;
      padding: 39px 35px;
    }

  div#third-subtest
    {
      border-top: green solid 1px;
      border-right: green solid 5px;
      border-bottom: green solid 10px;
      border-left: green solid 5px;
      padding: 39px 35px 30px;
    }

  div#fourth-subtest
    {
      border-top: green solid 1px;
      border-right: green solid 5px;
      border-bottom: green solid 10px;
      border-left: green solid 15px;
      padding: 39px 35px 30px 25px;
    }
  </style>

  <div class="outer" id="first-subtest"><div class="inside"></div></div>

  <div class="outer" id="second-subtest"><div class="inside"></div></div>

  <div class="outer" id="third-subtest"><div class="inside"></div></div>

  <div class="outer" id="fourth-subtest"><div class="inside"></div></div>
