wpt / css / css-scroll-snap / multicol-001.html

Status: FAIL | Duration: 47ms | Subtests: 0/3 | Open test on wpt.live | wpt.fyi

TestTest SourceSubtests (0/3)

Data from commit:
1884860 Copy-on-write style attribute blocks that are in the rule tree (#831) (2026-09-02)

SubtestStatusMessage
scroll-snap-align: startFAILassert_equals: expected 240 but got 0
scroll-snap-align: endFAILassert_equals: expected 120 but got 0
scroll-snap-align: centerFAILassert_equals: expected 180 but got 0

/css/css-scroll-snap/multicol-001.html

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#overview">
<link rel="help" href="https://drafts.csswg.org/css-multicol/">
<meta name="assert" content="Scroll snapping on fragmented block inside multicol">
<div id="scrollable" style="overflow:hidden; margin:100px; scroll-snap-type:x mandatory; columns:3; width:340px; column-gap:20px; column-fill:auto; height:100px;">
  <div style="height:200px; background:blue;"></div>
  <div id="target" style="scroll-snap-align:start; height:120px; background:cyan;"></div>
  <div style="height:200px; background:gray;"></div>
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
  test(()=> {
    assert_equals(scrollable.scrollLeft, 240);
  }, "scroll-snap-align: start");

  test(()=> {
    target.style.scrollSnapAlign = "end";
    assert_equals(scrollable.scrollLeft, 120);
  }, "scroll-snap-align: end");

  test(()=> {
    target.style.scrollSnapAlign = "center";
    assert_equals(scrollable.scrollLeft, 180);
  }, "scroll-snap-align: center");
</script>