| <style> |
| body { |
| margin: 0; |
| } |
| |
| table { |
| background: red; |
| border-collapse: collapse; |
| } |
| |
| td, th { |
| height: 50px; |
| width: 50px; |
| padding: 0; |
| } |
| |
| th { |
| background: green; |
| } |
| |
| .scroller { |
| will-change: transform; |
| |
| overflow: auto; |
| width: 100px; |
| height: 200px; |
| outline: 2px solid black; |
| } |
| |
| .sticky { |
| will-change: transform; |
| |
| position: sticky; |
| top: 25px; |
| } |
| </style> |
| |
| <script> |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| |
| function finishTest() { |
| document.querySelector('.scroller').scrollTop = 200; |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| } |
| |
| window.addEventListener('load', function() { |
| requestAnimationFrame(function() { |
| requestAnimationFrame(finishTest); |
| }); |
| }); |
| </script> |
| |
| |
| <div class="scroller"> |
| <table> |
| <thead class="sticky"> |
| <tr class="sticky"> |
| <th class="sticky"></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr><td></td></tr> |
| <tr><td></td></tr> |
| <tr><td></td></tr> |
| <tr><td></td></tr> |
| <tr><td></td></tr> |
| <tr><td></td></tr> |
| <tr><td></td></tr> |
| <tr><td></td></tr> |
| <tr><td></td></tr> |
| </tbody> |
| </table> |
| </div> |