| <!DOCTYPE html> |
| <p>There should be two blue squares below.</p> |
| <div id="multicol" style="columns:2; column-gap:50px; width:150px;"> |
| <div id="changeMe" style="width:50px;"> |
| <div id="spanner" style="column-span:all; height:100px; background:blue;"></div> |
| </div> |
| </div> |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| <script> |
| test(() => { |
| var multicol = document.getElementById("multicol"); |
| var spanner = document.getElementById("spanner"); |
| var changeMe = document.getElementById('changeMe'); |
| document.documentElement.offsetTop; |
| |
| changeMe.style.cssFloat = 'left'; |
| assert_equals(multicol.offsetHeight, 50); |
| assert_equals(spanner.offsetWidth, 50); |
| }, "Turn a spanner's parent from regular block into float"); |
| </script> |
