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<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto;
  gap: 10px;
  background-color: dodgerblue;
  padding: 10px;
}
.grid-container > div {
  background-color: #f1f1f1;
  text-align: center;
  padding: 10px;
  font-size: 30px;
}
.item1 {
  grid-column: 1 / span 2;
}
</style>
</head>
<body>
<h1>The grid-column Property</h1>
<p>The <em>grid-column</em> property is a shorthand property for the <em>grid-column-start</em> and the 
<em>grid-column-end</em> properties.</p>
<p>Place the first grid item at column-line 1, and let it span 2 columns:</p>
<div class="grid-container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>  
  <div class="item4">4</div>
  <div class="item5">5</div>
  <div class="item6">6</div>
  <div class="item7">7</div>
  <div class="item8">8</div>  
</div>