column-sibling-2a-dyn.html 716 B

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  1. <!DOCTYPE html>
  2. <html class="reftest-wait">
  3. <head>
  4. <style type="text/css">
  5. #multi-column1, #multi-column2, #multi-column3 {
  6. -moz-column-count: 1;
  7. column-count: 1;
  8. height: 20px;
  9. background-color: blue;
  10. }
  11. #multi-column1 {
  12. margin-bottom: 10px;
  13. }
  14. #multi-column2 {
  15. display: none;
  16. margin: 20px 0;
  17. }
  18. #multi-column3 {
  19. margin-top: 10px;
  20. }
  21. </style>
  22. <script type="text/javascript">
  23. function test() {
  24. document.getElementById('multi-column2').style.display = 'block';
  25. document.documentElement.removeAttribute('class');
  26. }
  27. document.addEventListener('MozReftestInvalidate', test, false);
  28. </script>
  29. </head>
  30. <body>
  31. <div id="multi-column1"></div>
  32. <div id="multi-column2"></div>
  33. <div id="multi-column3"></div>
  34. </body>
  35. </html>