| <!-- Based on fast/repaint/multicol-with-overflowing-block-bt.html --> |
| <!DOCTYPE html> |
| <script src="resources/paint-invalidation-test.js"></script> |
| <script> |
| onload = runPaintInvalidationTest; |
| window.expectedPaintInvalidationObjects = [ |
| "LayoutBlockFlow DIV id='elm'", |
| ]; |
| function paintInvalidationTest() { |
| document.getElementById('elm').style.background = 'green'; |
| } |
| </script> |
| <div id="container" style="-webkit-columns:3; -webkit-column-gap:0; column-fill:auto; width:500px; height:500px; -webkit-writing-mode:horizontal-bt;"> |
| <div style="height:100px;"> |
| <div id="elm" style="height:1500px; background:yellow;"></div> |
| </div> |
| </div> |
| <p>Test changing the background color of a big block that overflows the flow thread.</p> |
| <p>A green square should be seen above.</p> |
