css/css-grid/grid-model/grid-margins-no-collapse-001.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Grid Layout Test: grid's margins do not collapse</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
<link rel="help" href="http://www.w3.org/TR/css-grid-1/#grid-containers" title="3.1 Establishing Grid Containers">
<link rel="match" href="../reference/grid-text-green-margin-no-collapse-ref.html">
<meta name="assert" content="This test checks that grid's margin (body) do not collapse with the marings of the grid item (a paragraph).">
<style>
  body {
    display: grid;
  }

  p {
    color: green;
  }
</style>
<p>This text should be <strong>green</strong> and body and paragraph margins should <strong>not collapse</strong>.</p>