css/css-grid/alignment/grid-item-auto-margins-001.html

<!DOCTYPE html>
<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1213878">
<meta name="assert" content="Auto margin alignment should be safe.">
<style>
#grid {
  display: grid;
  width: 100px;
  height: 100px;
  background: red;
  grid-template: 0px / 0px;
}

#grid > div {
  width: 100px;
  height: 100px;
  background: green;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="grid">
  <div style="margin: auto;"></div>
</div>