block-fix-height-last-child-3a-dyn.html 648 B

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  1. <!DOCTYPE html>
  2. <html class="reftest-wait">
  3. <head>
  4. <style type="text/css">
  5. #parent {
  6. height: 100px;
  7. background-color: lightgreen;
  8. }
  9. #last-child {
  10. display: none;
  11. height: 140px;
  12. margin-bottom: 20px;
  13. background-color: green;
  14. }
  15. #separator {
  16. height: 20px;
  17. background-color: blue;
  18. }
  19. </style>
  20. <script type="text/javascript">
  21. function test() {
  22. document.getElementById('last-child').style.display = 'block';
  23. document.documentElement.removeAttribute('class');
  24. }
  25. document.addEventListener('MozReftestInvalidate', test, false);
  26. </script>
  27. </head>
  28. <body>
  29. <div id="parent">
  30. <div id="last-child"></div>
  31. </div>
  32. <div id="separator"></div>
  33. </body>
  34. </html>