<!DOCTYPE html>
<meta charset="utf-8">
<link rel="author" title="Mozilla" href="https://mozilla.org">
<link rel="help" href="https://www.w3.org/TR/css-grid-1/#named-lines" title="5.1.1. Named Grid Lines: the '(&lt;custom-ident\&gt;*)' syntax">
<link rel="help" href="https://www.w3.org/TR/css-grid-1/#valdef-repeat-auto-fill" title="7.2.2.2. Repeat-to-fill: 'auto-fill' and 'auto-fit' repetitions">
<style>

.holder {
  width: 300px;
  height: 20px;
  border-bottom: 2px solid #cfbfcf;
}

.holder > :nth-child(2) {
  clear: left; /* Forces the div to a new line to simulate a new grid row. */
  padding-top: 2px; /* Simulates the grid row gap. */
}

.grid-container > * { float: left; height: 8px; }

.grid-container > :nth-child(3n)   {  background: sienna; }
.grid-container > :nth-child(3n+1) {  background: gold; }
.grid-container > :nth-child(3n+2) {  background: orange; }

.alt-color > :nth-child(2n) { background: sienna; }
.alt-color > :nth-child(2n+1) { background: orange; }

.invis { width: 0px; visibility: none; }

</style>

<p>The test passes if it has the same visual effect as reference.</p>

<div class="holder">
  <div class="grid-container">
    <div style="width:30px; margin-left:30px"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div style="width:50px; margin-left:170px"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div style="width:30px; margin-left:30px"></div>
    <div style="width:30px; margin-left:40px"></div>
    <div style="width:40px;"></div>
    <div style="width:50px;"></div>
    <div style="width:60px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div style="width:10px;"></div>
    <div style="width:30px; margin-left:20px"></div>
    <div style="width:30px; margin-left:40px"></div>
    <div style="width:40px;"></div>
    <div style="width:50px;"></div>
    <div style="width:60px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div style="width:30px; margin-left:30px"></div>
    <div style="width:50px; margin-left:110px"></div>
    <div style="width:60px;"></div>
  </div>
  <div class="grid-container">
    <div style="width:10px"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div style="width:10px;"></div>
    <div style="width:30px; margin-left:20px"></div>
    <div style="width:50px; margin-left:110px"></div>
    <div style="width:60px;"></div>
  </div>
  <div class="grid-container">
    <div class="invis"></div>
    <div style="width:10px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div style="width:50px; margin-left:10px;"></div>
    <div style="width:40px;"></div>
    <div style="width:30px;"></div>
    <div style="width:40px;"></div>
    <div style="width:50px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div style="width:90px; margin-left:10px;"></div>
    <div style="width:30px;"></div>
    <div style="width:40px;"></div>
    <div style="width:50px;"></div>
    <div style="width:60px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div class="invis"></div>
    <div style="width:10px;"></div>
    <div class="invis"></div>
    <div style="width:90px;"></div>
    <div class="invis"></div>
    <div style="width:30px;"></div>
    <div style="width:40px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container alt-color">
    <div class="invis"></div>
    <div style="width:10px;"></div>
    <div style="width:120px;"></div>
    <div style="width:40px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div style="width:10px;"></div>
    <div style="width:90px;"></div>
    <div style="width:30px;"></div>
    <div style="width:40px;"></div>
    <div style="width:50px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div class="invis"></div>
    <div style="width:10px;"></div>
    <div class="invis"></div>
    <div style="width:50px;"></div>
    <div class="invis"></div>
    <div style="width:40px;"></div>
    <div style="width:30px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container alt-color">
    <div class="invis"></div>
    <div style="width:10px;"></div>
    <div style="width:90px;"></div>
    <div style="width:30px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div style="width:10px;"></div>
    <div style="width:50px;"></div>
    <div style="width:40px;"></div>
    <div style="width:30px;"></div>
    <div style="width:40px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div style="width:10px;"></div>
    <div style="width:20px;"></div>
    <div style="width:140px;"></div>
    <div style="width:50px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div style="width:10px;"></div>
    <div class="invis"></div>
    <div style="width:20px;"></div>
    <div class="invis"></div>
    <div style="width:140px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container alt-color">
    <div style="width:30px;"></div>
    <div style="width:140px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div class="invis"></div>
    <div style="width:10px;"></div>
    <div class="invis"></div>
    <div style="width:140px; margin-left:20px;"></div>
  </div>
</div>

<div class="holder">
  <div class="grid-container">
    <div class="invis"></div>
    <div style="width:10px;"></div>
    <div class="invis"></div>
    <div style="width:210px;"></div>
  </div>
</div>

