<!DOCTYPE HTML>
<html><head>
  <meta charset="utf-8">
  <title>CSS Grid Test: Implicit line placement with a subgrid</title>
  <link rel="author" title="Kurt Catti-Schmidt" href="mailto:kschmi@microsoft.com">
  <link rel="help" href="https://drafts.csswg.org/css-grid-2/#placement">
  <link rel="match" href="placement-implicit-001-ref.html">
  <style>
html,body {
  font:10px/1 monospace;
  padding:0;
  margin:0;
}

.grid {
  display: inline-grid;
  grid-auto-columns: 15px;
  border: 1px solid;
}

.subgrid {
