column-sibling-1c-dyn.html 697 B

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  1. <!DOCTYPE html>
  2. <html class="reftest-wait">
  3. <head>
  4. <style type="text/css">
  5. #block1, #block2 {
  6. height: 20px;
  7. background-color: orange;
  8. }
  9. #block1 {
  10. margin-bottom: 20px;
  11. }
  12. #multi-column {
  13. display: none;
  14. -moz-column-count: 1;
  15. column-count: 1;
  16. height: 20px;
  17. margin: 20px 0;
  18. background-color: blue;
  19. }
  20. #block2 {
  21. margin-top: 20px;
  22. }
  23. </style>
  24. <script type="text/javascript">
  25. function test() {
  26. document.getElementById('multi-column').style.display = 'block';
  27. document.documentElement.removeAttribute('class');
  28. }
  29. document.addEventListener('MozReftestInvalidate', test, false);
  30. </script>
  31. </head>
  32. <body>
  33. <div id="block1"></div>
  34. <div id="multi-column"></div>
  35. <div id="block2"></div>
  36. </body>
  37. </html>