<!DOCTYPE html>
<title>
  CSS Gap Decorations: An outset of 5px extends decorations slightly beyond the edges of adjacent items in subgrid.
</title>
<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
<link rel="match" href="../grid-gap-decorations-012-ref.html">
<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
<style>
  .grid-container {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    grid-template-rows: repeat(3, 100px);
    gap: 10px