<!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 {
  display: grid;
  grid-template-columns: subgrid;
  grid-column: 3 / span 4;
  grid-auto-rows: 8px;
  background: grey;
}

.subgrid > :nth-child(2n)   {  background: black; }
.subgrid > :nth-child(2n+1) {  background: pink; }

  </style>
</head>
<body>

<div class="grid">
  <div class="subgrid">
    <div style="grid-column:5"></div>
    <div style="grid-column:x"></div>
    <div style="grid-column:5"></div>
    <div></div>
    <div style="grid-column:5"></div>
  </div>
</div>

<div class="grid">
  <div class="subgrid">
    <div style="grid-column:5"></div>
    <div style="grid-column:5"></div>
    <div style="grid-column:x"></div>
    <div style="grid-column:5"></div>
    <div style="grid-column:x"></div>
    <div style="grid-column:5"></div>
  </div>
</div>

<div class="grid">
  <div class="subgrid">
    <div style="grid-column:5"></div>
    <div></div>
    <div style="grid-column:5"></div>
    <div></div>
    <div style="grid-column:5"></div>
    <div></div>
  </div>
</div>

</body>
</html>
