<!DOCTYPE html>

  <meta charset="UTF-8">

  <title>CSS Reference Test</title>

  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">

  <style>
  div.blue
    {
      background-color: rgba(0, 0, 255, 0.5);  /* semi-transparent blue */
      border: black double 18px;
      height: 36px;
      width: 36px;
    }

  div#sub-test41-orange
    {
      background-color: rgba(255, 165, 0, 0.5);  /* semi-transparent orange */
      bottom: 54px; /* offsetHeight == 54px */
      height: 54px;
      left: 72px;
      position: relative;
      width: 36px;
    }

  div#sub-test42-orange
    {
      background-color: rgba(255, 165, 0, 0.5);  /* semi-transparent orange */
      bottom: 54px;
      height: 18px;
      left: 36px;
      position: relative;
      width: 72px;
    }

  div#sub-test51-orange
    {
      background-color: rgba(255, 165, 0, 0.5);  /* semi-transparent orange */
      bottom: 90px; /* 18px + 72px == 90px */
      height: 72px;
      left: 72px;
      position: relative;
      width: 54px;
    }

  div#sub-test52-orange
    {
      background-color: rgba(255, 165, 0, 0.5);  /* semi-transparent orange */
      bottom: 90px;
      height: 36px;
      left: 18px;
      position: relative;
      width: 108px;
    }

  div#sub-test6-orange
    {
      background-color: rgba(255, 165, 0, 0.5);  /* semi-transparent orange */
      bottom: 108px;
      height: 36px;
      left: 72px;
      position: relative;
      width: 18px;
    }
  </style>

  <h3>Not inset and Npx Mpx: 36px 18px</h3>

  <div class="blue"></div><div id="sub-test41-orange"></div><div id="sub-test42-orange"></div>

  <div class="blue" style="position: relative; bottom: 18px;"></div><div id="sub-test51-orange"></div><div id="sub-test52-orange"></div>

  <div class="blue" style="position: relative; bottom: 72px;"></div><div id="sub-test6-orange"></div>