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Result Size: 625 x 571
x
 
<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto auto;
  grid-gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}
.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}
</style>
</head>
<body>
<h1>Change the grid-template-columns Property with JavaScript</h1>
<p>Click the button to change the grid layout from a four columns layout to a three columns layout, where each column is 50px wide:</p>
<p><button onclick="myFunction()">Change layout</button></p>
<div class="grid-container" id="myDIV">
  <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>
<script>
function myFunction() {
  document.getElementById("myDIV").style.gridTemplateColumns = "50px 50px 50px";
}
</script>
</body>
<!-- Mirrored from www.w3schools.com/cssref/tryit.asp?filename=trycss_js_grid-template-columns by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:01:16 GMT -->
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