block-first-child-8c-dyn.html 621 B

12345678910111213141516171819202122232425262728293031323334
  1. <!DOCTYPE html>
  2. <html class="reftest-wait">
  3. <head>
  4. <style type="text/css">
  5. #separator {
  6. height: 40px;
  7. background-color: green;
  8. }
  9. #first-child {
  10. display: none;
  11. height: 40px;
  12. margin-top: -20px;
  13. background-color: blue;
  14. }
  15. #parent {
  16. margin-top: -20px;
  17. }
  18. </style>
  19. <script type="text/javascript">
  20. function test() {
  21. document.getElementById('first-child').style.display = 'block';
  22. document.documentElement.removeAttribute('class');
  23. }
  24. document.addEventListener('MozReftestInvalidate', test, false);
  25. </script>
  26. </head>
  27. <body>
  28. <div id="separator"></div>
  29. <div id="parent">
  30. <div id="first-child"></div>
  31. </div>
  32. </body>
  33. </html>