Blitz - WPT: scrollWidthHeight-contain-layout.html

wpt / css / cssom-view / scrollWidthHeight-contain-layout.html

Data from commit:
a50cb89 wpt: run reference-named files which are themselves tests (#836) (2026-09-03)

Subtest	Status	Message
scroll{Width,Height} should match with contain: layout for display: flex, overflow: hidden, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: hidden, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: hidden, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: hidden, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: hidden, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: hidden, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: hidden, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: hidden, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: hidden, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: hidden, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: hidden, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: hidden, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: hidden, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: hidden, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: hidden, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: hidden, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: hidden, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: hidden, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: hidden, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: hidden, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: hidden, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: hidden, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: hidden, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: hidden, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: hidden, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: hidden, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: hidden, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: hidden, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: hidden, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: hidden, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: hidden, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: hidden, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: auto, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: auto, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: auto, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: auto, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: auto, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: auto, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: auto, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: auto, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: auto, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: auto, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: auto, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: auto, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: auto, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: auto, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: auto, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: auto, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: auto, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: auto, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: auto, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: auto, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: auto, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: auto, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: auto, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: auto, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: auto, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: auto, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: auto, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: auto, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: auto, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: auto, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: auto, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: auto, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: scroll, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: scroll, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: scroll, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: scroll, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: scroll, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: scroll, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: scroll, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: scroll, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: scroll, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: scroll, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: scroll, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: scroll, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: scroll, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: scroll, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: scroll, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: scroll, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: scroll, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: scroll, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: scroll, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: scroll, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: scroll, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: scroll, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: scroll, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: scroll, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: scroll, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: scroll, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: scroll, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: scroll, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: scroll, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: scroll, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: scroll, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: scroll, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: clip, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: clip, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: clip, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: clip, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: clip, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: clip, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: clip, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: clip, padding: 0, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: clip, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: clip, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: clip, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: clip, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: clip, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: clip, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: clip, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: clip, padding: 0, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: clip, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: clip, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: clip, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: clip, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: clip, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: clip, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: clip, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: clip, padding: 2px, border: 0	PASS
scroll{Width,Height} should match with contain: layout for display: flex, overflow: clip, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: block, overflow: clip, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: flow-root, overflow: clip, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-block, overflow: clip, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-flex, overflow: clip, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: grid, overflow: clip, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline-grid, overflow: clip, padding: 2px, border: 3px solid	PASS
scroll{Width,Height} should match with contain: layout for display: inline, overflow: clip, padding: 2px, border: 3px solid	PASS

Enable JavaScript in test iframe

/css/cssom-view/scrollWidthHeight-contain-layout.html

<!doctype html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<link rel="author" title="Mozilla" href="https://mozilla.org">
<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollwidth">
<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollheight">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1931490">
<title>scroll{Width,Height} with contain: layout</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
  #target {
    contain: layout;
    height: 0;
    width: 0;
  }
</style>
<div id="target">
  <div style="height: 2000px"></div>
</div>
<script>
let target = document.getElementById("target");
// "clip" is not really scrollable, but should match as well.
for (let overflow of ["hidden", "auto", "scroll", "clip"]) {
  for (let padding of ["0", "2px"]) {
    for (let border of ["0", "3px solid"]) {
      for (let display of ["flex", "block", "flow-root", "inline-block", "inline-flex", "grid", "inline-grid", "inline"]) {
        test(function() {
          target.style.display = display;
          target.style.border = border;
          target.style.padding = padding;
          let visibleH = target.scrollHeight;
          let visibleW = target.scrollWidth;
          target.style.overflow = overflow;
          let scrollableH = target.scrollHeight;
          let scrollableW = target.scrollWidth;
          assert_equals(visibleH, scrollableH, "scrollHeight should match for visible and " + overflow);
          assert_equals(visibleW, scrollableW, "scrollWidth should match for visible and " + overflow);
          target.style.overflow = "";
          target.style.display = "";
        }, `scroll{Width,Height} should match with contain: layout for display: ${display}, overflow: ${overflow}, padding: ${padding}, border: ${border}`);
      }
    }
  }
}
</script>