<!doctype html>
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<script src='/resources/check-layout-th.js'></script>
<link rel="author" href="mailto:atotic@chromium.org">
<link rel="help" href="https://html.spec.whatwg.org/multipage/tables.html#the-td-element">
<meta name="assert" content="Dynamic changes to rowspan/colspan relayout the table" />
<style>
  main table {
    border-spacing:0;
  }
  main td {
    background: green;
    width:50px;
    