contain-strict-nested-subgrid.html

Enable keyboard shortcuts

<!DOCTYPE html>

<link rel="author" title="Mozilla" href="https://mozilla.org">

<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1606485">

<style>

* {

  grid-template-rows: subgrid;

  display: grid;

  overflow: scroll;

  contain: strict;

</style>

<script>

document.addEventListener('DOMContentLoaded', function() {

  let e = document.createElement('s');

  document.documentElement.appendChild(e);

  document.documentElement.getBoundingClientRect() // Update layout

});

</script>