| <!DOCTYPE html> |
| <div id="multicol" style="position:relative; columns:2; column-fill:auto; line-height:20px; orphans:1; widows:1; background:yellow;"> |
| <div style="width:4em;"> |
| <div style="height:20px; background:hotpink;"></div> |
| <div style="height:15px;"> |
| <div id="child1">line</div> |
| <div id="child2">line</div> |
| <div id="child3">line</div> |
| <div id="child4">line</div> |
| <div id="child5">line</div> |
| </div> |
| </div> |
| </div> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <script> |
| test(() => { |
| var multicol = document.getElementById("multicol"); |
| var child1 = document.getElementById("child1"); |
| var child2 = document.getElementById("child2"); |
| var child3 = document.getElementById("child3"); |
| var child4 = document.getElementById("child4"); |
| var child5 = document.getElementById("child5"); |
| |
| assert_equals(child1.offsetTop, 20); |
| assert_equals(child2.offsetTop, 40); |
| assert_equals(child3.offsetTop, 0); |
| assert_equals(child4.offsetTop, 20); |
| assert_equals(child5.offsetTop, 40); |
| |
| multicol.style.height = "90px"; |
| assert_equals(child3.offsetTop, 60); |
| assert_equals(child4.offsetTop, 0); |
| assert_equals(child5.offsetTop, 20); |
| |
| multicol.style.height = "80px"; |
| assert_equals(child3.offsetTop, 60); |
| assert_equals(child4.offsetTop, 0); |
| assert_equals(child5.offsetTop, 20); |
| |
| multicol.style.height = "110px"; |
| assert_equals(child3.offsetTop, 60); |
| assert_equals(child4.offsetTop, 80); |
| assert_equals(child5.offsetTop, 0); |
| |
| multicol.style.height = "200px"; |
| assert_equals(child3.offsetTop, 60); |
| assert_equals(child4.offsetTop, 80); |
| assert_equals(child5.offsetTop, 100); |
| |
| multicol.style.height = "100px"; |
| assert_equals(child3.offsetTop, 60); |
| assert_equals(child4.offsetTop, 80); |
| assert_equals(child5.offsetTop, 0); |
| |
| }, "Overflow should also be fragmented."); |
| </script> |
