chromium/third_party/blink/web_tests/external/wpt/css/css-grid/grid-model/grid-margins-no-collapse-002.html

<!DOCTYPE html>
<title>CSS Grid Layout Test: grid items not collapsing</title>
<link rel="author" title="Javier Fernandez" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-grid-1/#grid-containers">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=430100">
<link rel="match" href="grid-margins-no-collapse-002-ref.html">
<link rel="stylesheet" href="/css/support/grid.css">
<meta name="assert" content="Test that grid item's margins do not collapse with its content's margins." />

<div>This test checks that grid item's margins do not collapse with its content's margins (single margin in the first row and double between subsequent).</div>

<div style="display: grid;">
  <div><p>XXXXX</p></div>
  <div style="margin:20px 0px;">XXXXX</div>
  <div><p>XXXXX</p></div>
</div>